162602
domain: N
Appears in sequences
- Numbers k such that k and k+1 have same sum of divisors.at n=31A002961
- Numbers k such that k and k+1 have the same sum but an unequal number of divisors.at n=21A054007
- Numbers k such that sigma(k)*omega(k) = sigma(k+1)*omega(k+1), where omega(k) is the number of distinct prime divisors of n (A001221).at n=17A063071
- Numbers n such that floor(antisigma(n) / sigma(n)) = floor(antisigma(n+1) / sigma(n+1)).at n=23A244666
- Numbers k such that s(k) = s(k+1), where s(k) is the sum of recursive divisors of k (A333926).at n=30A333949
- Numbers k such that A051378(k) = A051378(k+1).at n=32A349283