18218992

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1697}}^1$

素因数の和:1777

約数の個数: 40

約数和(自身を含む): 39162672

約数和(自身を除く): 20943680

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 1697, 2684, 3394, 5368, 6788, 10736, 13576, 18667, 27152, 37334, 74668, 103517, 149336, 207034, 298672, 414068, 828136, 1138687, 1656272, 2277374, 4554748, 9109496, 18218992]

約数ペア:

[(1, 18218992), (2, 9109496), (4, 4554748), (8, 2277374), (11, 1656272), (16, 1138687), (22, 828136), (44, 414068), (61, 298672), (88, 207034), (122, 149336), (176, 103517), (244, 74668), (488, 37334), (671, 27152), (976, 18667), (1342, 13576), (1697, 10736), (2684, 6788), (3394, 5368)]