21539771

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:802

約数の個数: 16

約数和(自身を含む): 24427008

約数和(自身を除く): 2887237

約数列:

[1, 11, 47, 61, 517, 671, 683, 2867, 7513, 31537, 32101, 41663, 353111, 458293, 1958161, 21539771]

約数ペア:

[(1, 21539771), (11, 1958161), (47, 458293), (61, 353111), (517, 41663), (671, 32101), (683, 31537), (2867, 7513)]