1246417

Appears in sequences

• Bi-unitary k-hyperperfect numbers: numbers m such that m = 1 + k * (bsigma(m) - m - 1) where bsigma(m) is the sum of bi-unitary divisors of m (A188999) and k >= 1 is an integer.at n=33A309568
• Numbers k such that sigma(k) = psi(k) + tau(k)^4 + omega(k).at n=10A392519