826875domain: NAppears in sequencesOdd nonunitary abundant numbers.at n=21A094889Odd coreful abundant numbers: the odd terms of A308053.at n=6A339936a(n) = A276086(n) * A276086(sigma(n)-n), where A276086 is the primorial base exp-function, and sigma is the sum of divisors function.at n=39A388282