21991164

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4861}}^1$

素因数の和:4910

約数の個数: 48

約数和(自身を含む): 57177120

約数和(自身を除く): 35185956

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 78, 87, 116, 156, 174, 348, 377, 754, 1131, 1508, 2262, 4524, 4861, 9722, 14583, 19444, 29166, 58332, 63193, 126386, 140969, 189579, 252772, 281938, 379158, 422907, 563876, 758316, 845814, 1691628, 1832597, 3665194, 5497791, 7330388, 10995582, 21991164]

約数ペア:

[(1, 21991164), (2, 10995582), (3, 7330388), (4, 5497791), (6, 3665194), (12, 1832597), (13, 1691628), (26, 845814), (29, 758316), (39, 563876), (52, 422907), (58, 379158), (78, 281938), (87, 252772), (116, 189579), (156, 140969), (174, 126386), (348, 63193), (377, 58332), (754, 29166), (1131, 19444), (1508, 14583), (2262, 9722), (4524, 4861)]