18219656

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 25325944

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, 863, 1508, 1624, 1726, 2639, 3016, 3452, 5278, 6041, 6904, 10556, 11219, 12082, 21112, 22438, 24164, 25027, 44876, 48328, 50054, 78533, 89752, 100108, 157066, 175189, 200216, 314132, 325351, 350378, 628264, 650702, 700756, 1301404, 1401512, 2277457, 2602808, 4554914, 9109828, 18219656]

約数ペア:

[(1, 18219656), (2, 9109828), (4, 4554914), (7, 2602808), (8, 2277457), (13, 1401512), (14, 1301404), (26, 700756), (28, 650702), (29, 628264), (52, 350378), (56, 325351), (58, 314132), (91, 200216), (104, 175189), (116, 157066), (182, 100108), (203, 89752), (232, 78533), (364, 50054), (377, 48328), (406, 44876), (728, 25027), (754, 24164), (812, 22438), (863, 21112), (1508, 12082), (1624, 11219), (1726, 10556), (2639, 6904), (3016, 6041), (3452, 5278)]