81456564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{969721}}^1$

素因数の和:969735

約数の個数: 24

約数和(自身を含む): 217217728

約数和(自身を除く): 135761164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 969721, 1939442, 2909163, 3878884, 5818326, 6788047, 11636652, 13576094, 20364141, 27152188, 40728282, 81456564]

約数ペア:

[(1, 81456564), (2, 40728282), (3, 27152188), (4, 20364141), (6, 13576094), (7, 11636652), (12, 6788047), (14, 5818326), (21, 3878884), (28, 2909163), (42, 1939442), (84, 969721)]