20815698

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{80681}}^1$

素因数の和:80729

約数の個数: 16

約数和(自身を含む): 42600096

約数和(自身を除く): 21784398

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 80681, 161362, 242043, 484086, 3469283, 6938566, 10407849, 20815698]

約数ペア:

[(1, 20815698), (2, 10407849), (3, 6938566), (6, 3469283), (43, 484086), (86, 242043), (129, 161362), (258, 80681)]