20541365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4451}}^1$

素因数の和:4540

約数の個数: 16

約数和(自身を含む): 26925696

約数和(自身を除く): 6384331

約数列:

[1, 5, 13, 65, 71, 355, 923, 4451, 4615, 22255, 57863, 289315, 316021, 1580105, 4108273, 20541365]

約数ペア:

[(1, 20541365), (5, 4108273), (13, 1580105), (65, 316021), (71, 289315), (355, 57863), (923, 22255), (4451, 4615)]