20904389

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3449}}^1$

素因数の和:3508

約数の個数: 16

約数和(自身を含む): 24840000

約数和(自身を除く): 3935611

約数列:

[1, 11, 19, 29, 209, 319, 551, 3449, 6061, 37939, 65531, 100021, 720841, 1100231, 1900399, 20904389]

約数ペア:

[(1, 20904389), (11, 1900399), (19, 1100231), (29, 720841), (209, 100021), (319, 65531), (551, 37939), (3449, 6061)]