21920847

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11959}}^1$

素因数の和:12022

約数の個数: 16

約数和(自身を含む): 32148480

約数和(自身を除く): 10227633

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 11959, 35877, 155467, 466401, 562073, 1686219, 7306949, 21920847]

約数ペア:

[(1, 21920847), (3, 7306949), (13, 1686219), (39, 562073), (47, 466401), (141, 155467), (611, 35877), (1833, 11959)]