19721618

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{3797}}^1$

素因数の和:3866

約数の個数: 24

約数和(自身を含む): 35070732

約数和(自身を除く): 15349114

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 3797, 5194, 7594, 26579, 53158, 186053, 201241, 372106, 402482, 1408687, 2817374, 9860809, 19721618]

約数ペア:

[(1, 19721618), (2, 9860809), (7, 2817374), (14, 1408687), (49, 402482), (53, 372106), (98, 201241), (106, 186053), (371, 53158), (742, 26579), (2597, 7594), (3797, 5194)]