20217176

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 45792000

約数和(自身を除く): 25574824

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 59, 116, 118, 203, 211, 232, 236, 406, 413, 422, 472, 812, 826, 844, 1477, 1624, 1652, 1688, 1711, 2954, 3304, 3422, 5908, 6119, 6844, 11816, 11977, 12238, 12449, 13688, 23954, 24476, 24898, 42833, 47908, 48952, 49796, 85666, 87143, 95816, 99592, 171332, 174286, 342664, 348572, 361021, 697144, 722042, 1444084, 2527147, 2888168, 5054294, 10108588, 20217176]

約数ペア:

[(1, 20217176), (2, 10108588), (4, 5054294), (7, 2888168), (8, 2527147), (14, 1444084), (28, 722042), (29, 697144), (56, 361021), (58, 348572), (59, 342664), (116, 174286), (118, 171332), (203, 99592), (211, 95816), (232, 87143), (236, 85666), (406, 49796), (413, 48952), (422, 47908), (472, 42833), (812, 24898), (826, 24476), (844, 23954), (1477, 13688), (1624, 12449), (1652, 12238), (1688, 11977), (1711, 11816), (2954, 6844), (3304, 6119), (3422, 5908)]