21766472

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1031}}^1$

素因数の和:1086

約数の個数: 64

約数和(自身を含む): 52012800

約数和(自身を除く): 30246328

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 52, 56, 58, 91, 104, 116, 182, 203, 232, 364, 377, 406, 728, 754, 812, 1031, 1508, 1624, 2062, 2639, 3016, 4124, 5278, 7217, 8248, 10556, 13403, 14434, 21112, 26806, 28868, 29899, 53612, 57736, 59798, 93821, 107224, 119596, 187642, 209293, 239192, 375284, 388687, 418586, 750568, 777374, 837172, 1554748, 1674344, 2720809, 3109496, 5441618, 10883236, 21766472]

約数ペア:

[(1, 21766472), (2, 10883236), (4, 5441618), (7, 3109496), (8, 2720809), (13, 1674344), (14, 1554748), (26, 837172), (28, 777374), (29, 750568), (52, 418586), (56, 388687), (58, 375284), (91, 239192), (104, 209293), (116, 187642), (182, 119596), (203, 107224), (232, 93821), (364, 59798), (377, 57736), (406, 53612), (728, 29899), (754, 28868), (812, 26806), (1031, 21112), (1508, 14434), (1624, 13403), (2062, 10556), (2639, 8248), (3016, 7217), (4124, 5278)]