A351371 a(n) = Sum_{p|n, p prime} (p + n/p).

0, 3, 4, 4, 6, 10, 8, 6, 6, 14, 12, 15, 14, 18, 16, 10, 18, 20, 20, 21, 20, 26, 24, 25, 10, 30, 12, 27, 30, 41, 32, 18, 28, 38, 24, 35, 38, 42, 32, 35, 42, 53, 44, 39, 32, 50, 48, 45, 14, 42, 40, 45, 54, 50, 32, 45, 44, 62, 60, 72, 62, 66, 40, 34, 36, 77, 68, 57, 52, 73, 72, 65, 74

Offset

1,2

Links

Table of n, a(n) for n=1..73.

Example

a(6) = 10; a(6) = Sum_{p|6, p prime} (p + 6/p) = (2 + 6/2) + (3 + 6/3) = 10.

Crossrefs

Sequence in context: A282847 A363239 A047877 * A280448 A100692 A360724

Adjacent sequences: A351368 A351369 A351370 * A351372 A351373 A351374

Keyword

nonn

Author

Wesley Ivan Hurt, Feb 08 2022

Status

approved