21000388668

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{2617}}^1\times {\mathrm{95531}}^1$

素因数の和:98162

約数の個数: 48

約数和(自身を含む): 56023021824

約数和(自身を除く): 35022633156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 2617, 5234, 7851, 10468, 15702, 18319, 31404, 36638, 54957, 73276, 95531, 109914, 191062, 219828, 286593, 382124, 573186, 668717, 1146372, 1337434, 2006151, 2674868, 4012302, 8024604, 250004627, 500009254, 750013881, 1000018508, 1500027762, 1750032389, 3000055524, 3500064778, 5250097167, 7000129556, 10500194334, 21000388668]

約数ペア:

[(1, 21000388668), (2, 10500194334), (3, 7000129556), (4, 5250097167), (6, 3500064778), (7, 3000055524), (12, 1750032389), (14, 1500027762), (21, 1000018508), (28, 750013881), (42, 500009254), (84, 250004627), (2617, 8024604), (5234, 4012302), (7851, 2674868), (10468, 2006151), (15702, 1337434), (18319, 1146372), (31404, 668717), (36638, 573186), (54957, 382124), (73276, 286593), (95531, 219828), (109914, 191062)]