20488741

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3691}}^1$

素因数の和:3772

約数の個数: 16

約数和(自身を含む): 25637248

約数和(自身を除く): 5148507

約数列:

[1, 7, 13, 61, 91, 427, 793, 3691, 5551, 25837, 47983, 225151, 335881, 1576057, 2926963, 20488741]

約数ペア:

[(1, 20488741), (7, 2926963), (13, 1576057), (61, 335881), (91, 225151), (427, 47983), (793, 25837), (3691, 5551)]