Numbers n such that n | sigma_3(n) + sigma_2(n) + sigma_1(n) + sigma_0(n).

Terms

a(0) =1a(1) =4a(2) =5a(3) =6a(4) =9a(5) =14a(6) =42a(7) =69a(8) =138a(9) =428a(10) =2772a(11) =3243a(12) =3306a(13) =4830a(14) =7882a(15) =24720a(16) =49710a(17) =53403a(18) =314184a(19) =1351280a(20) =1847772a(21) =27247596a(22) =31525032a(23) =41113416a(24) =41590824a(25) =42844894a(26) =44193564a(27) =47287104a(28) =95962560a(29) =104935384