Numbers k such that the sum of k, the divisors of k, and the numbers < k that are coprime to k, is a perfect power.
A352876
Numbers k such that the sum of k, the divisors of k, and the numbers < k that are coprime to k, is a perfect power.
Terms
- a(0) =7a(1) =9a(2) =12a(3) =36a(4) =700a(5) =752a(6) =4081a(7) =18745a(8) =167940a(9) =1095876a(10) =3393680a(11) =5621764a(12) =9950500a(13) =30108516
External references
- oeis: A352876