21578556

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{26839}}^1$

素因数の和:26913

約数の個数: 24

約数和(自身を含む): 51103360

約数和(自身を除く): 29524804

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804, 26839, 53678, 80517, 107356, 161034, 322068, 1798213, 3596426, 5394639, 7192852, 10789278, 21578556]

約数ペア:

[(1, 21578556), (2, 10789278), (3, 7192852), (4, 5394639), (6, 3596426), (12, 1798213), (67, 322068), (134, 161034), (201, 107356), (268, 80517), (402, 53678), (804, 26839)]