20478029

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7537}}^1$

素因数の和:7580

約数の個数: 16

約数和(自身を含む): 25327680

約数和(自身を除く): 4849651

約数列:

[1, 11, 13, 19, 143, 209, 247, 2717, 7537, 82907, 97981, 143203, 1077791, 1575233, 1861639, 20478029]

約数ペア:

[(1, 20478029), (11, 1861639), (13, 1575233), (19, 1077791), (143, 143203), (209, 97981), (247, 82907), (2717, 7537)]