21816410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{977}}^1$

素因数の和:1031

約数の個数: 64

約数和(自身を含む): 50699520

約数和(自身を除く): 28883110

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 55, 58, 70, 77, 110, 145, 154, 203, 290, 319, 385, 406, 638, 770, 977, 1015, 1595, 1954, 2030, 2233, 3190, 4466, 4885, 6839, 9770, 10747, 11165, 13678, 21494, 22330, 28333, 34195, 53735, 56666, 68390, 75229, 107470, 141665, 150458, 198331, 283330, 311663, 376145, 396662, 623326, 752290, 991655, 1558315, 1983310, 2181641, 3116630, 4363282, 10908205, 21816410]

約数ペア:

[(1, 21816410), (2, 10908205), (5, 4363282), (7, 3116630), (10, 2181641), (11, 1983310), (14, 1558315), (22, 991655), (29, 752290), (35, 623326), (55, 396662), (58, 376145), (70, 311663), (77, 283330), (110, 198331), (145, 150458), (154, 141665), (203, 107470), (290, 75229), (319, 68390), (385, 56666), (406, 53735), (638, 34195), (770, 28333), (977, 22330), (1015, 21494), (1595, 13678), (1954, 11165), (2030, 10747), (2233, 9770), (3190, 6839), (4466, 4885)]