2021199

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:310

約数の個数: 16

約数和(自身を含む): 2808960

約数和(自身を除く): 787761

約数列:

[1, 3, 37, 111, 131, 139, 393, 417, 4847, 5143, 14541, 15429, 18209, 54627, 673733, 2021199]

約数ペア:

[(1, 2021199), (3, 673733), (37, 54627), (111, 18209), (131, 15429), (139, 14541), (393, 5143), (417, 4847)]