18517856

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^2\times {\mathrm{229}}^1$

素因数の和:284

約数の個数: 72

約数和(自身を含む): 44165520

約数和(自身を除く): 25647664

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 229, 266, 304, 361, 458, 532, 608, 722, 916, 1064, 1444, 1603, 1832, 2128, 2527, 2888, 3206, 3664, 4256, 4351, 5054, 5776, 6412, 7328, 8702, 10108, 11552, 12824, 17404, 20216, 25648, 30457, 34808, 40432, 51296, 60914, 69616, 80864, 82669, 121828, 139232, 165338, 243656, 330676, 487312, 578683, 661352, 974624, 1157366, 1322704, 2314732, 2645408, 4629464, 9258928, 18517856]

約数ペア:

[(1, 18517856), (2, 9258928), (4, 4629464), (7, 2645408), (8, 2314732), (14, 1322704), (16, 1157366), (19, 974624), (28, 661352), (32, 578683), (38, 487312), (56, 330676), (76, 243656), (112, 165338), (133, 139232), (152, 121828), (224, 82669), (229, 80864), (266, 69616), (304, 60914), (361, 51296), (458, 40432), (532, 34808), (608, 30457), (722, 25648), (916, 20216), (1064, 17404), (1444, 12824), (1603, 11552), (1832, 10108), (2128, 8702), (2527, 7328), (2888, 6412), (3206, 5776), (3664, 5054), (4256, 4351)]