21231368

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1459}}^1$

素因数の和:1589

約数の個数: 32

約数和(自身を含む): 42573600

約数和(自身を除く): 21342232

約数列:

[1, 2, 4, 8, 17, 34, 68, 107, 136, 214, 428, 856, 1459, 1819, 2918, 3638, 5836, 7276, 11672, 14552, 24803, 49606, 99212, 156113, 198424, 312226, 624452, 1248904, 2653921, 5307842, 10615684, 21231368]

約数ペア:

[(1, 21231368), (2, 10615684), (4, 5307842), (8, 2653921), (17, 1248904), (34, 624452), (68, 312226), (107, 198424), (136, 156113), (214, 99212), (428, 49606), (856, 24803), (1459, 14552), (1819, 11672), (2918, 7276), (3638, 5836)]