20216979207

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{329519}}^1$

素因数の和:329943

約数の個数: 24

約数和(自身を含む): 30997287360

約数和(自身を除く): 10780308153

約数列:

[1, 3, 9, 17, 51, 153, 401, 1203, 3609, 6817, 20451, 61353, 329519, 988557, 2965671, 5601823, 16805469, 50416407, 132137119, 396411357, 1189234071, 2246331023, 6738993069, 20216979207]

約数ペア:

[(1, 20216979207), (3, 6738993069), (9, 2246331023), (17, 1189234071), (51, 396411357), (153, 132137119), (401, 50416407), (1203, 16805469), (3609, 5601823), (6817, 2965671), (20451, 988557), (61353, 329519)]