20557537

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1867}}^1$

素因数の和:1909

約数の個数: 24

約数和(自身を含む): 27825728

約数和(自身を除く): 7268191

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 847, 1001, 1573, 1867, 11011, 13069, 20537, 24271, 143759, 169897, 225907, 266981, 1581349, 1868867, 2936791, 20557537]

約数ペア:

[(1, 20557537), (7, 2936791), (11, 1868867), (13, 1581349), (77, 266981), (91, 225907), (121, 169897), (143, 143759), (847, 24271), (1001, 20537), (1573, 13069), (1867, 11011)]