Integers k such that there exists an integer 0<m<k such that sigma(k) = sigma(m) = m + 2*k.

Terms

a(0) =1740a(1) =7776a(2) =22428a(3) =55968a(4) =106140a(5) =143910a(6) =198792a(7) =246510a(8) =309582a(9) =326196a(10) =411138a(11) =421596a(12) =428256a(13) =590112a(14) =639288a(15) =697158a(16) =870552a(17) =941094a(18) =958716a(19) =1060956a(20) =1087776a(21) =1105884a(22) =1269828a(23) =1341660a(24) =1361568a(25) =1447620a(26) =1495494a(27) =1512810a(28) =1626324a(29) =1727940