21281481218

素因数分解:

$2^1\times {\mathrm{619}}^1\times {\mathrm{2939}}^1\times {\mathrm{5849}}^1$

素因数の和:9409

約数の個数: 16

約数和(自身を含む): 31990140000

約数和(自身を除く): 10708658782

約数列:

[1, 2, 619, 1238, 2939, 5849, 5878, 11698, 1819241, 3620531, 3638482, 7241062, 17190211, 34380422, 10640740609, 21281481218]

約数ペア:

[(1, 21281481218), (2, 10640740609), (619, 34380422), (1238, 17190211), (2939, 7241062), (5849, 3638482), (5878, 3620531), (11698, 1819241)]