20952421

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{599}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 25344000

約数和(自身を除く): 4391579

約数列:

[1, 7, 19, 133, 263, 599, 1841, 4193, 4997, 11381, 34979, 79667, 157537, 1102759, 2993203, 20952421]

約数ペア:

[(1, 20952421), (7, 2993203), (19, 1102759), (133, 157537), (263, 79667), (599, 34979), (1841, 11381), (4193, 4997)]