18988156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 20202884

約数列:

[1, 2, 4, 11, 22, 23, 29, 44, 46, 58, 92, 116, 253, 319, 506, 638, 647, 667, 1012, 1276, 1294, 1334, 2588, 2668, 7117, 7337, 14234, 14674, 14881, 18763, 28468, 29348, 29762, 37526, 59524, 75052, 163691, 206393, 327382, 412786, 431549, 654764, 825572, 863098, 1726196, 4747039, 9494078, 18988156]

約数ペア:

[(1, 18988156), (2, 9494078), (4, 4747039), (11, 1726196), (22, 863098), (23, 825572), (29, 654764), (44, 431549), (46, 412786), (58, 327382), (92, 206393), (116, 163691), (253, 75052), (319, 59524), (506, 37526), (638, 29762), (647, 29348), (667, 28468), (1012, 18763), (1276, 14881), (1294, 14674), (1334, 14234), (2588, 7337), (2668, 7117)]