18726554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 38817792

約数和(自身を除く): 20091238

約数列:

[1, 2, 7, 11, 14, 17, 22, 23, 34, 46, 77, 119, 154, 161, 187, 238, 253, 311, 322, 374, 391, 506, 622, 782, 1309, 1771, 2177, 2618, 2737, 3421, 3542, 4301, 4354, 5287, 5474, 6842, 7153, 8602, 10574, 14306, 23947, 30107, 37009, 47894, 50071, 58157, 60214, 74018, 78683, 100142, 116314, 121601, 157366, 243202, 407099, 550781, 814198, 851207, 1101562, 1337611, 1702414, 2675222, 9363277, 18726554]

約数ペア:

[(1, 18726554), (2, 9363277), (7, 2675222), (11, 1702414), (14, 1337611), (17, 1101562), (22, 851207), (23, 814198), (34, 550781), (46, 407099), (77, 243202), (119, 157366), (154, 121601), (161, 116314), (187, 100142), (238, 78683), (253, 74018), (311, 60214), (322, 58157), (374, 50071), (391, 47894), (506, 37009), (622, 30107), (782, 23947), (1309, 14306), (1771, 10574), (2177, 8602), (2618, 7153), (2737, 6842), (3421, 5474), (3542, 5287), (4301, 4354)]