Numbers n such that sigma(n+1)-sigma(n) = -sigma(n)/d(n), where d(n) denotes the number of divisors of n.

A066177

Numbers n such that sigma(n+1)-sigma(n) = -sigma(n)/d(n), where d(n) denotes the number of divisors of n.

Terms

    a(0) =165a(1) =1106a(2) =7006a(3) =11516a(4) =12597a(5) =14882a(6) =16604a(7) =21045a(8) =23541a(9) =39866a(10) =42465a(11) =43172a(12) =46078a(13) =67198a(14) =95588a(15) =118988a(16) =121425a(17) =121797a(18) =200186a(19) =426213a(20) =496226a(21) =557265a(22) =1183545a(23) =1247684a(24) =1340241a(25) =1379024a(26) =2106321a(27) =2199716a(28) =3236877a(29) =3853857

External references