Numbers k such that the sum of the divisors of k and the sum of the distinct prime divisors of k are both a square.
A194196
Numbers k such that the sum of the divisors of k and the sum of the distinct prime divisors of k are both a square.
Terms
- a(0) =1a(1) =66a(2) =94a(3) =1092a(4) =1146a(5) =1416a(6) =1491a(7) =1782a(8) =2130a(9) =2159a(10) =2805a(11) =3012a(12) =3531a(13) =4836a(14) =8736a(15) =9065a(16) =9911a(17) =12532a(18) =13156a(19) =15960a(20) =16194a(21) =24096a(22) =25866a(23) =27652a(24) =29316a(25) =29484a(26) =30942a(27) =34162a(28) =34782a(29) =34860
External references
- oeis: A194196