21000618145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10422143}}^1$

素因数の和:10422192

約数の個数: 16

約数和(自身を含む): 28014723072

約数和(自身を除く): 7014104927

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 10422143, 52110715, 135487859, 323086433, 677439295, 1615432165, 4200123629, 21000618145]

約数ペア:

[(1, 21000618145), (5, 4200123629), (13, 1615432165), (31, 677439295), (65, 323086433), (155, 135487859), (403, 52110715), (2015, 10422143)]