2021180785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{437959}}^1$

素因数の和:438048

約数の個数: 16

約数和(自身を含む): 2648782080

約数和(自身を除く): 627601295

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 437959, 2189795, 5693467, 28467335, 31095089, 155475445, 404236157, 2021180785]

約数ペア:

[(1, 2021180785), (5, 404236157), (13, 155475445), (65, 31095089), (71, 28467335), (355, 5693467), (923, 2189795), (4615, 437959)]