8217207

素因数分解:

$3^4\times {\mathrm{229}}^1\times {\mathrm{443}}^1$

素因数の和:684

約数の個数: 20

約数和(自身を含む): 12356520

約数和(自身を除く): 4139313

約数列:

[1, 3, 9, 27, 81, 229, 443, 687, 1329, 2061, 3987, 6183, 11961, 18549, 35883, 101447, 304341, 913023, 2739069, 8217207]

約数ペア:

[(1, 8217207), (3, 2739069), (9, 913023), (27, 304341), (81, 101447), (229, 35883), (443, 18549), (687, 11961), (1329, 6183), (2061, 3987)]