20403957508

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42156937}}^1$

素因数の和:42156963

約数の個数: 18

約数和(自身を含む): 39248109278

約数和(自身を除く): 18844151770

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42156937, 84313874, 168627748, 463726307, 927452614, 1854905228, 5100989377, 10201978754, 20403957508]

約数ペア:

[(1, 20403957508), (2, 10201978754), (4, 5100989377), (11, 1854905228), (22, 927452614), (44, 463726307), (121, 168627748), (242, 84313874), (484, 42156937)]