21700845

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 41817600

約数和(自身を除く): 20116755

約数列:

[1, 3, 5, 9, 15, 23, 27, 29, 45, 69, 87, 115, 135, 145, 207, 241, 261, 345, 435, 621, 667, 723, 783, 1035, 1205, 1305, 2001, 2169, 3105, 3335, 3615, 3915, 5543, 6003, 6507, 6989, 10005, 10845, 16629, 18009, 20967, 27715, 30015, 32535, 34945, 49887, 62901, 83145, 90045, 104835, 149661, 160747, 188703, 249435, 314505, 482241, 748305, 803735, 943515, 1446723, 2411205, 4340169, 7233615, 21700845]

約数ペア:

[(1, 21700845), (3, 7233615), (5, 4340169), (9, 2411205), (15, 1446723), (23, 943515), (27, 803735), (29, 748305), (45, 482241), (69, 314505), (87, 249435), (115, 188703), (135, 160747), (145, 149661), (207, 104835), (241, 90045), (261, 83145), (345, 62901), (435, 49887), (621, 34945), (667, 32535), (723, 30015), (783, 27715), (1035, 20967), (1205, 18009), (1305, 16629), (2001, 10845), (2169, 10005), (3105, 6989), (3335, 6507), (3615, 6003), (3915, 5543)]