21398883

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{34129}}^1$

素因数の和:34162

約数の個数: 16

約数和(自身を含む): 32764800

約数和(自身を除く): 11365917

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 34129, 102387, 375419, 648451, 1126257, 1945353, 7132961, 21398883]

約数ペア:

[(1, 21398883), (3, 7132961), (11, 1945353), (19, 1126257), (33, 648451), (57, 375419), (209, 102387), (627, 34129)]