20512781278

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2290907}}^1$

素因数の和:2290968

約数の個数: 24

約数和(自身を含む): 34734747096

約数和(自身を除く): 14221965818

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 4477, 8954, 2290907, 4581814, 25199977, 50399954, 84763559, 169527118, 277199747, 554399494, 932399149, 1864798298, 10256390639, 20512781278]

約数ペア:

[(1, 20512781278), (2, 10256390639), (11, 1864798298), (22, 932399149), (37, 554399494), (74, 277199747), (121, 169527118), (242, 84763559), (407, 50399954), (814, 25199977), (4477, 4581814), (8954, 2290907)]