2177581

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 2730240

約数和(自身を除く): 552659

約数列:

[1, 7, 17, 29, 119, 203, 493, 631, 3451, 4417, 10727, 18299, 75089, 128093, 311083, 2177581]

約数ペア:

[(1, 2177581), (7, 311083), (17, 128093), (29, 75089), (119, 18299), (203, 10727), (493, 4417), (631, 3451)]