Least multiple of n whose sum of divisors is divisible by n.

Terms

a(0) =1a(1) =6a(2) =6a(3) =12a(4) =40a(5) =6a(6) =28a(7) =56a(8) =90a(9) =40a(10) =473a(11) =24a(12) =117a(13) =28a(14) =120a(15) =336a(16) =1139a(17) =90a(18) =703a(19) =120a(20) =420a(21) =946a(22) =3151a(23) =120a(24) =3725a(25) =234a(26) =918a(27) =28a(28) =5017a(29) =120