4201148160
domain: N
Appears in sequences
- Infinitary perfect numbers.at n=7A007357
- Infinitary multi-perfect numbers.at n=14A007358
- UO-sigma multiperfect numbers: n such that A069184(n)/n is an integer.at n=15A092356
- Tri-unitary perfect numbers: numbers k such that tsigma(k) = 2k, where tsigma(k) is the sum of the tri-unitary divisors of k (A324706).at n=9A324707