20815612

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{121021}}^1$

素因数の和:121068

約数の個数: 12

約数和(自身を含む): 37274776

約数和(自身を除く): 16459164

約数列:

[1, 2, 4, 43, 86, 172, 121021, 242042, 484084, 5203903, 10407806, 20815612]

約数ペア:

[(1, 20815612), (2, 10407806), (4, 5203903), (43, 484084), (86, 242042), (172, 121021)]