678223089233
domain: N
Appears in sequences
- a(n) = 2^n + 7^n.at n=14A074602
- a^n + b^n + c^n + ..., where a*b*c* ... is the prime factorization of n.at n=13A082872
- Sum of the n-th powers of the distinct prime divisors of n.at n=13A200768
- a(n) = Sum_{p|n, p prime} p^lcm(p,n/p).at n=13A345311
- a(n) = Sum_{p|n, p prime} (n/p)^lcm(p,n/p).at n=13A345313