28857311

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1873}}^1$

素因数の和:1982

約数の個数: 16

約数和(自身を含む): 34541568

約数和(自身を除く): 5684257

約数列:

[1, 7, 31, 71, 217, 497, 1873, 2201, 13111, 15407, 58063, 132983, 406441, 930881, 4122473, 28857311]

約数ペア:

[(1, 28857311), (7, 4122473), (31, 930881), (71, 406441), (217, 132983), (497, 58063), (1873, 15407), (2201, 13111)]