Numbers k such that the sum of the digits of k^sigma(k) is divisible by k.

Terms

a(0) =1a(1) =2a(2) =3a(3) =9a(4) =11a(5) =18a(6) =54a(7) =74a(8) =108a(9) =135a(10) =426a(11) =531a(12) =585a(13) =1361a(14) =3456a(15) =6771a(16) =7245a(17) =7392a(18) =11025a(19) =11957a(20) =21494a(21) =27063a(22) =41952a(23) =68494a(24) =72516a(25) =108742a(26) =128331