20516041

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1721}}^1$

素因数の和:1872

約数の個数: 16

約数和(自身を含む): 25458048

約数和(自身を除く): 4942007

約数列:

[1, 7, 13, 91, 131, 917, 1703, 1721, 11921, 12047, 22373, 156611, 225451, 1578157, 2930863, 20516041]

約数ペア:

[(1, 20516041), (7, 2930863), (13, 1578157), (91, 225451), (131, 156611), (917, 22373), (1703, 12047), (1721, 11921)]