20617436

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2843}}^1$

素因数の和:2898

約数の個数: 36

約数和(自身を含む): 43120728

約数和(自身を除く): 22503292

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 2843, 3626, 5686, 7252, 11372, 19901, 39802, 79604, 105191, 139307, 210382, 278614, 420764, 557228, 736337, 1472674, 2945348, 5154359, 10308718, 20617436]

約数ペア:

[(1, 20617436), (2, 10308718), (4, 5154359), (7, 2945348), (14, 1472674), (28, 736337), (37, 557228), (49, 420764), (74, 278614), (98, 210382), (148, 139307), (196, 105191), (259, 79604), (518, 39802), (1036, 19901), (1813, 11372), (2843, 7252), (3626, 5686)]