20007665321

素因数分解:

$7^1\times {\mathrm{911}}^1\times {\mathrm{1579}}^1\times {\mathrm{1987}}^1$

素因数の和:4484

約数の個数: 16

約数和(自身を含む): 22917027840

約数和(自身を除く): 2909362519

約数列:

[1, 7, 911, 1579, 1987, 6377, 11053, 13909, 1438469, 1810157, 3137473, 10069283, 12671099, 21962311, 2858237903, 20007665321]

約数ペア:

[(1, 20007665321), (7, 2858237903), (911, 21962311), (1579, 12671099), (1987, 10069283), (6377, 3137473), (11053, 1810157), (13909, 1438469)]