Divisors of the Euler and Carmichael functions
arXiv:math/0703535 · doi:10.4064/aa133-3-1
Abstract
We study the distribution of divisors of Euler's totient function and Carmichael's function. In particular, we estimate how often the values of these functions have "dense" divisors.
v.3, 11 pages. To appear in Acta Arithmetica. Very small corrections and changes suggested by the referee. Added abstract, keywords, MSC