2051216881

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{406423}}^1$

素因数の和:406540

約数の個数: 12

約数和(自身を含む): 2409281472

約数和(自身を除く): 358064591

約数列:

[1, 7, 49, 103, 721, 5047, 406423, 2844961, 19914727, 41861569, 293030983, 2051216881]

約数ペア:

[(1, 2051216881), (7, 293030983), (49, 41861569), (103, 19914727), (721, 2844961), (5047, 406423)]