19721052

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42139}}^1$

素因数の和:42162

約数の個数: 36

約数和(自身を含む): 53686360

約数和(自身を除く): 33965308

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42139, 84278, 126417, 168556, 252834, 379251, 505668, 547807, 758502, 1095614, 1517004, 1643421, 2191228, 3286842, 4930263, 6573684, 9860526, 19721052]

約数ペア:

[(1, 19721052), (2, 9860526), (3, 6573684), (4, 4930263), (6, 3286842), (9, 2191228), (12, 1643421), (13, 1517004), (18, 1095614), (26, 758502), (36, 547807), (39, 505668), (52, 379251), (78, 252834), (117, 168556), (156, 126417), (234, 84278), (468, 42139)]