2013211781

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{19447}}^1$

素因数の和:20120

約数の個数: 16

約数和(自身を含む): 2404706304

約数和(自身を除く): 391494523

約数列:

[1, 7, 23, 161, 643, 4501, 14789, 19447, 103523, 136129, 447281, 3130967, 12504421, 87530947, 287601683, 2013211781]

約数ペア:

[(1, 2013211781), (7, 287601683), (23, 87530947), (161, 12504421), (643, 3130967), (4501, 447281), (14789, 136129), (19447, 103523)]