16991149

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2971}}^1$

素因数の和:3040

約数の個数: 16

約数和(自身を含む): 20922880

約数和(自身を除く): 3931731

約数列:

[1, 7, 19, 43, 133, 301, 817, 2971, 5719, 20797, 56449, 127753, 395143, 894271, 2427307, 16991149]

約数ペア:

[(1, 16991149), (7, 2427307), (19, 894271), (43, 395143), (133, 127753), (301, 56449), (817, 20797), (2971, 5719)]