2021209929

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{409069}}^1$

素因数の和:409142

約数の個数: 20

約数和(自身を含む): 3068843140

約数和(自身を除く): 1047633211

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 409069, 1227207, 3681621, 11044863, 24953209, 33134589, 74859627, 224578881, 673736643, 2021209929]

約数ペア:

[(1, 2021209929), (3, 673736643), (9, 224578881), (27, 74859627), (61, 33134589), (81, 24953209), (183, 11044863), (549, 3681621), (1647, 1227207), (4941, 409069)]