683289600domain: NAppears in sequencesUO-sigma multiperfect numbers: n such that A069184(n)/n is an integer.at n=13A092356a(n) is the smallest n-perfect number of the form 2^(n+1)*L, where L is an odd number with exponents <= n in its prime power factorization, and a(n)=0 if no such n-perfect number exists.at n=8A178785