21169379

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4507}}^1$

素因数の和:4586

約数の個数: 16

約数和(自身を含む): 26831616

約数和(自身を除く): 5662237

約数列:

[1, 7, 11, 61, 77, 427, 671, 4507, 4697, 31549, 49577, 274927, 347039, 1924489, 3024197, 21169379]

約数ペア:

[(1, 21169379), (7, 3024197), (11, 1924489), (61, 347039), (77, 274927), (427, 49577), (671, 31549), (4507, 4697)]