Numbers whose sum of anti-divisors is equal to the sum of the divisors of their arithmetic derivative.

A249912

Numbers whose sum of anti-divisors is equal to the sum of the divisors of their arithmetic derivative.

Terms

    a(0) =26a(1) =51a(2) =134a(3) =369a(4) =614a(5) =1154a(6) =2010a(7) =2186a(8) =2790a(9) =3134a(10) =4034a(11) =5294a(12) =6074a(13) =6614a(14) =7814a(15) =9134a(16) =11031a(17) =12014a(18) =12494a(19) =13158a(20) =15014a(21) =22394a(22) =22934a(23) =22994a(24) =24554a(25) =27134a(26) =32894a(27) =47774a(28) =52694a(29) =54794

External references