21796516

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1579}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 47779200

約数和(自身を除く): 25982684

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 58, 68, 116, 119, 203, 238, 406, 476, 493, 812, 986, 1579, 1972, 3158, 3451, 6316, 6902, 11053, 13804, 22106, 26843, 44212, 45791, 53686, 91582, 107372, 183164, 187901, 320537, 375802, 641074, 751604, 778447, 1282148, 1556894, 3113788, 5449129, 10898258, 21796516]

約数ペア:

[(1, 21796516), (2, 10898258), (4, 5449129), (7, 3113788), (14, 1556894), (17, 1282148), (28, 778447), (29, 751604), (34, 641074), (58, 375802), (68, 320537), (116, 187901), (119, 183164), (203, 107372), (238, 91582), (406, 53686), (476, 45791), (493, 44212), (812, 26843), (986, 22106), (1579, 13804), (1972, 11053), (3158, 6902), (3451, 6316)]