146710domain: NAppears in sequencesIntegers whose sum of divisors is a 7th power.at n=14A048257Numbers n with even length such that sigma(n)=d_1^d_2*d_3^d_4 *...*d_(k-1)^d_k where d_1 d_2 ... d_k is the decimal expansion of n.at n=0A110084