20802271

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5639}}^1$

素因数の和:5694

約数の個数: 16

約数和(自身を含む): 25989120

約数和(自身を除く): 5186849

約数列:

[1, 7, 17, 31, 119, 217, 527, 3689, 5639, 39473, 95863, 174809, 671041, 1223663, 2971753, 20802271]

約数ペア:

[(1, 20802271), (7, 2971753), (17, 1223663), (31, 671041), (119, 174809), (217, 95863), (527, 39473), (3689, 5639)]