20403777

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{1151}}^1$

素因数の和:1484

約数の個数: 16

約数和(自身を含む): 28753920

約数和(自身を除く): 8350143

約数列:

[1, 3, 19, 57, 311, 933, 1151, 3453, 5909, 17727, 21869, 65607, 357961, 1073883, 6801259, 20403777]

約数ペア:

[(1, 20403777), (3, 6801259), (19, 1073883), (57, 357961), (311, 65607), (933, 21869), (1151, 17727), (3453, 5909)]