Numbers n such that A307042(n) = Sum_{k=1..n} esigma(k) is divisible by n, where esigma(k) is sum of exponential divisors of k (A051377).

A307043

Numbers n such that A307042(n) = Sum_{k=1..n} esigma(k) is divisible by n, where esigma(k) is sum of exponential divisors of k (A051377).

Terms

    a(0) =1a(1) =3a(2) =4a(3) =8a(4) =13a(5) =78a(6) =94a(7) =481a(8) =511a(9) =4819a(10) =13557a(11) =23083a(12) =84245a(13) =204744a(14) =562243a(15) =591105a(16) =614339a(17) =617675a(18) =656263a(19) =1545716a(20) =6370802a(21) =34882737a(22) =534034248a(23) =601990019a(24) =1153304776a(25) =2064184733a(26) =3570196547a(27) =10572032882

External references