20471792

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2837}}^1$

素因数の和:2897

約数の個数: 40

約数和(自身を含む): 44340912

約数和(自身を除く): 23869120

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2837, 3608, 5674, 7216, 11348, 22696, 31207, 45392, 62414, 116317, 124828, 232634, 249656, 465268, 499312, 930536, 1279487, 1861072, 2558974, 5117948, 10235896, 20471792]

約数ペア:

[(1, 20471792), (2, 10235896), (4, 5117948), (8, 2558974), (11, 1861072), (16, 1279487), (22, 930536), (41, 499312), (44, 465268), (82, 249656), (88, 232634), (164, 124828), (176, 116317), (328, 62414), (451, 45392), (656, 31207), (902, 22696), (1804, 11348), (2837, 7216), (3608, 5674)]