20005689

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31907}}^1$

素因数の和:31940

約数の個数: 16

約数和(自身を含む): 30631680

約数和(自身を除く): 10625991

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 31907, 95721, 350977, 606233, 1052931, 1818699, 6668563, 20005689]

約数ペア:

[(1, 20005689), (3, 6668563), (11, 1818699), (19, 1052931), (33, 606233), (57, 350977), (209, 95721), (627, 31907)]