21808696

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1033}}^1$

素因数の和:1088

約数の個数: 64

約数和(自身を含む): 52113600

約数和(自身を除く): 30304904

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 52, 56, 58, 91, 104, 116, 182, 203, 232, 364, 377, 406, 728, 754, 812, 1033, 1508, 1624, 2066, 2639, 3016, 4132, 5278, 7231, 8264, 10556, 13429, 14462, 21112, 26858, 28924, 29957, 53716, 57848, 59914, 94003, 107432, 119828, 188006, 209699, 239656, 376012, 389441, 419398, 752024, 778882, 838796, 1557764, 1677592, 2726087, 3115528, 5452174, 10904348, 21808696]

約数ペア:

[(1, 21808696), (2, 10904348), (4, 5452174), (7, 3115528), (8, 2726087), (13, 1677592), (14, 1557764), (26, 838796), (28, 778882), (29, 752024), (52, 419398), (56, 389441), (58, 376012), (91, 239656), (104, 209699), (116, 188006), (182, 119828), (203, 107432), (232, 94003), (364, 59914), (377, 57848), (406, 53716), (728, 29957), (754, 28924), (812, 26858), (1033, 21112), (1508, 14462), (1624, 13429), (2066, 10556), (2639, 8264), (3016, 7231), (4132, 5278)]