21694544

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1$

素因数の和:459

約数の個数: 40

約数和(自身を含む): 43806720

約数和(自身を除く): 22112176

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 191, 229, 248, 382, 458, 496, 764, 916, 1528, 1832, 3056, 3664, 5921, 7099, 11842, 14198, 23684, 28396, 43739, 47368, 56792, 87478, 94736, 113584, 174956, 349912, 699824, 1355909, 2711818, 5423636, 10847272, 21694544]

約数ペア:

[(1, 21694544), (2, 10847272), (4, 5423636), (8, 2711818), (16, 1355909), (31, 699824), (62, 349912), (124, 174956), (191, 113584), (229, 94736), (248, 87478), (382, 56792), (458, 47368), (496, 43739), (764, 28396), (916, 23684), (1528, 14198), (1832, 11842), (3056, 7099), (3664, 5921)]