20216948199

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{56630107}}^1$

素因数の和:56630134

約数の個数: 16

約数和(自身を含む): 32618942208

約数和(自身を除く): 12401994009

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 56630107, 169890321, 396410749, 962711819, 1189232247, 2888135457, 6738982733, 20216948199]

約数ペア:

[(1, 20216948199), (3, 6738982733), (7, 2888135457), (17, 1189232247), (21, 962711819), (51, 396410749), (119, 169890321), (357, 56630107)]