Abstract
If n is a positive integer such that Φ(n)σ(n) = m2 for some positive integer m, then m≤n. We put m = n - a and we study the positive integers a arising in this way.
Original language | English (US) |
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Pages (from-to) | 127-137 |
Number of pages | 11 |
Journal | Colloquium Mathematicum |
Volume | 130 |
Issue number | 1 |
DOIs | |
State | Published - 2012 |
Keywords
- Euler function
- Sum of divisors
ASJC Scopus subject areas
- General Mathematics