Anti-multiply-perfect numbers. Numbers n for which sigma*(n)/n is an integer, where sigma*(n) is the sum of the anti-divisors of n.

A214842

Anti-multiply-perfect numbers. Numbers n for which sigma*(n)/n is an integer, where sigma*(n) is the sum of the anti-divisors of n.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =8a(4) =41a(5) =56a(6) =77a(7) =946a(8) =1568a(9) =2768a(10) =5186a(11) =6874a(12) =8104a(13) =17386a(14) =27024a(15) =84026a(16) =167786a(17) =2667584a(18) =4775040a(19) =4921776a(20) =27914146a(21) =505235234a(22) =3238952914a(23) =73600829714a(24) =455879783074a(25) =528080296234a(26) =673223621664

External references