20547254

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 41731200

約数和(自身を除く): 21183946

約数列:

[1, 2, 7, 13, 14, 17, 26, 29, 34, 58, 91, 119, 182, 203, 221, 229, 238, 377, 406, 442, 458, 493, 754, 986, 1547, 1603, 2639, 2977, 3094, 3206, 3451, 3893, 5278, 5954, 6409, 6641, 6902, 7786, 12818, 13282, 20839, 27251, 41678, 44863, 46487, 50609, 54502, 86333, 89726, 92974, 101218, 112897, 172666, 225794, 354263, 604331, 708526, 790279, 1208662, 1467661, 1580558, 2935322, 10273627, 20547254]

約数ペア:

[(1, 20547254), (2, 10273627), (7, 2935322), (13, 1580558), (14, 1467661), (17, 1208662), (26, 790279), (29, 708526), (34, 604331), (58, 354263), (91, 225794), (119, 172666), (182, 112897), (203, 101218), (221, 92974), (229, 89726), (238, 86333), (377, 54502), (406, 50609), (442, 46487), (458, 44863), (493, 41678), (754, 27251), (986, 20839), (1547, 13282), (1603, 12818), (2639, 7786), (2977, 6902), (3094, 6641), (3206, 6409), (3451, 5954), (3893, 5278)]