OFFSET
1,2
COMMENTS
sigma_14(k) is the sum of the 14th powers of the divisors of k.
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..360
MATHEMATICA
Select[Range[250000], Divisible[DivisorSigma[14, #], EulerPhi[#]]&] (* Harvey P. Dale, Feb 02 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved