21008526

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1229}}^1$

素因数の和:1289

約数の個数: 64

約数和(自身を含む): 53844480

約数和(自身を除く): 32835954

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 37, 42, 66, 74, 77, 111, 154, 222, 231, 259, 407, 462, 518, 777, 814, 1221, 1229, 1554, 2442, 2458, 2849, 3687, 5698, 7374, 8547, 8603, 13519, 17094, 17206, 25809, 27038, 40557, 45473, 51618, 81114, 90946, 94633, 136419, 189266, 272838, 283899, 318311, 500203, 567798, 636622, 954933, 1000406, 1500609, 1909866, 3001218, 3501421, 7002842, 10504263, 21008526]

約数ペア:

[(1, 21008526), (2, 10504263), (3, 7002842), (6, 3501421), (7, 3001218), (11, 1909866), (14, 1500609), (21, 1000406), (22, 954933), (33, 636622), (37, 567798), (42, 500203), (66, 318311), (74, 283899), (77, 272838), (111, 189266), (154, 136419), (222, 94633), (231, 90946), (259, 81114), (407, 51618), (462, 45473), (518, 40557), (777, 27038), (814, 25809), (1221, 17206), (1229, 17094), (1554, 13519), (2442, 8603), (2458, 8547), (2849, 7374), (3687, 5698)]