21354132885

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20050829}}^1$

素因数の和:20050908

約数の個数: 16

約数和(自身を含む): 34647834240

約数和(自身を除く): 13293701355

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 20050829, 60152487, 100254145, 300762435, 1423608859, 4270826577, 7118044295, 21354132885]

約数ペア:

[(1, 21354132885), (3, 7118044295), (5, 4270826577), (15, 1423608859), (71, 300762435), (213, 100254145), (355, 60152487), (1065, 20050829)]