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Type: Article
On square values of the product of the Euler totient and sum of divisors functions
Abstract:
If n is a positive integer such that phi(n)sigma(n) = m(2) for some positive integer m, then m <= n. We put m = n - a and we study the positive integers a arising in this way
If n is a positive integer such that phi(n)sigma(n) = m(2) for some positive integer m, then m <= n. We put m = n - a and we study the positive integers a arising in this way
MSC: 11A41 (11A25)
Journal: Colloquium Mathematicum
ISSN: 0010-1354
Year: 2013
Volume: 130
Number: 1
Pages: 127-137
Created: 2013-05-27 16:50:11
Modified: 2013-11-25 12:59:01
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