20118188

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2729}}^1$

素因数の和:2849

約数の個数: 24

約数和(自身を含む): 37455600

約数和(自身を除く): 17337412

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2729, 3686, 5458, 7372, 10916, 51851, 103702, 207404, 264713, 529426, 1058852, 5029547, 10059094, 20118188]

約数ペア:

[(1, 20118188), (2, 10059094), (4, 5029547), (19, 1058852), (38, 529426), (76, 264713), (97, 207404), (194, 103702), (388, 51851), (1843, 10916), (2729, 7372), (3686, 5458)]