698915267211
domain: N
Appears in sequences
- Least k such that n divides d(sigma(k)) (d = A000005).at n=40A276043
- a(1) = 1; for n > 1, a(n) is the largest number m such that sigma(m) = tau(m)^n or 0 if no such m exists.at n=7A349007
- Irregular table read by rows; the n-th row contains in ascending order the integers m > 1 such that sigma(m) = tau(m)^n; the first row contains 1.at n=18A349838