8720621

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 10915968

約数和(自身を除く): 2195347

約数列:

[1, 7, 13, 61, 91, 427, 793, 1571, 5551, 10997, 20423, 95831, 142961, 670817, 1245803, 8720621]

約数ペア:

[(1, 8720621), (7, 1245803), (13, 670817), (61, 142961), (91, 95831), (427, 20423), (793, 10997), (1571, 5551)]