20659726

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31981}}^1$

素因数の和:32019

約数の個数: 16

約数和(自身を含む): 34540560

約数和(自身を除く): 13880834

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 31981, 63962, 543677, 607639, 1087354, 1215278, 10329863, 20659726]

約数ペア:

[(1, 20659726), (2, 10329863), (17, 1215278), (19, 1087354), (34, 607639), (38, 543677), (323, 63962), (646, 31981)]