document.write( "Question 1210514: For a positive integer n, let \tau(n) be the sum of the positive integer divisors of n. Find the number of values of n, where 1 \le n \le 25, such that \tau(n) = 1. \n" ); document.write( "

Algebra.Com's Answer #853181 by ikleyn(53339) $\"\"$ $\"About$

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\n" ); document.write( "For a positive integer n, let \tau(n) be the sum of the positive integer divisors of n.
\n" ); document.write( "Find the number of values of n, where 1 \le n \le 25, such that \tau(n) = 1.
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document.write( "Among all positive integer numbers 'n', there is only one value 'n', for which \r\n" );
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document.write( "    tau(n) = 1.\r\n" );
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document.write( "This exclusive positive integer  'n' is  n = 1.\r\n" );
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document.write( "For all other positive integer 'n',  tau(n)  is greater than 1, which is obvious.\r\n" );
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document.write( "Therefore, there is only one positive integer 'n', for which  tau(n) = 1.\r\n" );
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document.write( "This exclusive value of 'n'  is  n = 1.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved, with detailed explanations.\r
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\n" ); document.write( "\n" ); document.write( "This task isn't worth the shell of an eaten egg - so simple is it.\r
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