5332341
domain: N
Appears in sequences
- Numbers that are a product of distinct Mersenne primes (elements of A000668).at n=33A046528
- Least k such that sigma(k)=m^n for some m>1.at n=22A063869
- Numbers n such that sigma(n) is a prime power (A025475).at n=34A065523
- Smallest number m such that sigma(m) is an n-almost prime.at n=22A152092
- Positions of records in A175432.at n=19A169981
- a(n) is the smallest number N such that sigma(N) is an n-th power but not a higher power, with a(n) = 0 if no such number exists.at n=23A180162
- a(n) is the smallest number k such that sigma(k) = 2^n or 0 if no such k exists.at n=23A247956
- Nonprime numbers k such that sum of the divisors of k is a power of 2.at n=26A254603