21911218

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{82373}}^1$

素因数の和:82401

約数の個数: 16

約数和(自身を含む): 39539520

約数和(自身を除く): 17628302

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 82373, 164746, 576611, 1153222, 1565087, 3130174, 10955609, 21911218]

約数ペア:

[(1, 21911218), (2, 10955609), (7, 3130174), (14, 1565087), (19, 1153222), (38, 576611), (133, 164746), (266, 82373)]