20761531

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{523}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 24447744

約数和(自身を除く): 3686213

約数列:

[1, 7, 53, 107, 371, 523, 749, 3661, 5671, 27719, 39697, 55961, 194033, 391727, 2965933, 20761531]

約数ペア:

[(1, 20761531), (7, 2965933), (53, 391727), (107, 194033), (371, 55961), (523, 39697), (749, 27719), (3661, 5671)]