81969741

素因数分解:

$3^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{3433}}^1$

素因数の和:3825

約数の個数: 24

約数和(自身を含む): 135711680

約数和(自身を除く): 53741939

約数列:

[1, 3, 7, 9, 21, 63, 379, 1137, 2653, 3411, 3433, 7959, 10299, 23877, 24031, 30897, 72093, 216279, 1301107, 3903321, 9107749, 11709963, 27323247, 81969741]

約数ペア:

[(1, 81969741), (3, 27323247), (7, 11709963), (9, 9107749), (21, 3903321), (63, 1301107), (379, 216279), (1137, 72093), (2653, 30897), (3411, 24031), (3433, 23877), (7959, 10299)]