21012124

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 44049600

約数和(自身を除く): 23037476

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 113, 116, 203, 226, 229, 406, 452, 458, 791, 812, 916, 1582, 1603, 3164, 3206, 3277, 6412, 6554, 6641, 13108, 13282, 22939, 25877, 26564, 45878, 46487, 51754, 91756, 92974, 103508, 181139, 185948, 362278, 724556, 750433, 1500866, 3001732, 5253031, 10506062, 21012124]

約数ペア:

[(1, 21012124), (2, 10506062), (4, 5253031), (7, 3001732), (14, 1500866), (28, 750433), (29, 724556), (58, 362278), (113, 185948), (116, 181139), (203, 103508), (226, 92974), (229, 91756), (406, 51754), (452, 46487), (458, 45878), (791, 26564), (812, 25877), (916, 22939), (1582, 13282), (1603, 13108), (3164, 6641), (3206, 6554), (3277, 6412)]