21357570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2381}}^1$

素因数の和:2427

約数の個数: 64

約数和(自身を含む): 57625344

約数和(自身を除く): 36267774

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2381, 2990, 4485, 4762, 7143, 8970, 11905, 14286, 23810, 30953, 35715, 54763, 61906, 71430, 92859, 109526, 154765, 164289, 185718, 273815, 309530, 328578, 464295, 547630, 711919, 821445, 928590, 1423838, 1642890, 2135757, 3559595, 4271514, 7119190, 10678785, 21357570]

約数ペア:

[(1, 21357570), (2, 10678785), (3, 7119190), (5, 4271514), (6, 3559595), (10, 2135757), (13, 1642890), (15, 1423838), (23, 928590), (26, 821445), (30, 711919), (39, 547630), (46, 464295), (65, 328578), (69, 309530), (78, 273815), (115, 185718), (130, 164289), (138, 154765), (195, 109526), (230, 92859), (299, 71430), (345, 61906), (390, 54763), (598, 35715), (690, 30953), (897, 23810), (1495, 14286), (1794, 11905), (2381, 8970), (2990, 7143), (4485, 4762)]