21163472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120247}}^1$

素因数の和:120266

約数の個数: 20

約数和(自身を含む): 44732256

約数和(自身を除く): 23568784

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120247, 240494, 480988, 961976, 1322717, 1923952, 2645434, 5290868, 10581736, 21163472]

約数ペア:

[(1, 21163472), (2, 10581736), (4, 5290868), (8, 2645434), (11, 1923952), (16, 1322717), (22, 961976), (44, 480988), (88, 240494), (176, 120247)]