19745405

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{1151}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 24551424

約数和(自身を除く): 4806019

約数列:

[1, 5, 47, 73, 235, 365, 1151, 3431, 5755, 17155, 54097, 84023, 270485, 420115, 3949081, 19745405]

約数ペア:

[(1, 19745405), (5, 3949081), (47, 420115), (73, 270485), (235, 84023), (365, 54097), (1151, 17155), (3431, 5755)]