20668413

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{769}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 30257920

約数和(自身を除く): 9589507

約数列:

[1, 3, 17, 31, 51, 93, 289, 527, 769, 867, 1581, 2307, 8959, 13073, 23839, 26877, 39219, 71517, 222241, 405263, 666723, 1215789, 6889471, 20668413]

約数ペア:

[(1, 20668413), (3, 6889471), (17, 1215789), (31, 666723), (51, 405263), (93, 222241), (289, 71517), (527, 39219), (769, 26877), (867, 23839), (1581, 13073), (2307, 8959)]