131080256

Appears in sequences

• Numbers m such that A206773(m) = k and A206773(k) = m.at n=6A225028
• Integers k such that k is equal to the sum of the nonprime proper divisors of k.at n=2A331805
• a(n) = (2^p-1)*(2^(p-1))*((2^p-1)^2-2), where p is the n-th prime.at n=3A331858