20385278

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{4721}}^1$

素因数の和:4867

約数の個数: 16

約数和(自身を含む): 32638464

約数和(自身を除く): 12253186

約数列:

[1, 2, 17, 34, 127, 254, 2159, 4318, 4721, 9442, 80257, 160514, 599567, 1199134, 10192639, 20385278]

約数ペア:

[(1, 20385278), (2, 10192639), (17, 1199134), (34, 599567), (127, 160514), (254, 80257), (2159, 9442), (4318, 4721)]