Numbers m such that the sum of the first k divisors of m is equal to m for some k.

A064510

Numbers m such that the sum of the first k divisors of m is equal to m for some k.

Terms

    a(0) =1a(1) =6a(2) =24a(3) =28a(4) =496a(5) =2016a(6) =8128a(7) =8190a(8) =42336a(9) =45864a(10) =392448a(11) =714240a(12) =1571328a(13) =33550336a(14) =61900800a(15) =91963648a(16) =211891200a(17) =1931236608a(18) =2013143040a(19) =4428914688a(20) =8589869056a(21) =10200236032a(22) =137438691328a(23) =214204956672

External references