19904027

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{769}}^1$

素因数の和:974

約数の個数: 16

約数和(自身を含む): 23543520

約数和(自身を除く): 3639493

約数列:

[1, 11, 13, 143, 181, 769, 1991, 2353, 8459, 9997, 25883, 109967, 139189, 1531079, 1809457, 19904027]

約数ペア:

[(1, 19904027), (11, 1809457), (13, 1531079), (143, 139189), (181, 109967), (769, 25883), (1991, 9997), (2353, 8459)]