2157507

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 48

約数和(自身を含む): 3793920

約数和(自身を除く): 1636413

約数列:

[1, 3, 9, 11, 19, 31, 33, 37, 57, 93, 99, 111, 171, 209, 279, 333, 341, 407, 589, 627, 703, 1023, 1147, 1221, 1767, 1881, 2109, 3069, 3441, 3663, 5301, 6327, 6479, 7733, 10323, 12617, 19437, 21793, 23199, 37851, 58311, 65379, 69597, 113553, 196137, 239723, 719169, 2157507]

約数ペア:

[(1, 2157507), (3, 719169), (9, 239723), (11, 196137), (19, 113553), (31, 69597), (33, 65379), (37, 58311), (57, 37851), (93, 23199), (99, 21793), (111, 19437), (171, 12617), (209, 10323), (279, 7733), (333, 6479), (341, 6327), (407, 5301), (589, 3663), (627, 3441), (703, 3069), (1023, 2109), (1147, 1881), (1221, 1767)]