Numbers n>1 that divide the sum of their divisors and anti-divisors.

Terms

a(0) =3a(1) =19a(2) =76a(3) =85a(4) =131a(5) =139a(6) =184a(7) =649a(8) =772a(9) =1010a(10) =1190a(11) =3234a(12) =3328a(13) =3649a(14) =3970a(15) =4181a(16) =5881a(17) =11748a(18) =13369a(19) =29501a(20) =65789a(21) =286544a(22) =830568a(23) =2035100a(24) =2405568a(25) =5152800a(26) =10515998a(27) =13343342a(28) =30232314a(29) =34729314