18808867

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1783}}^1$

素因数の和:1938

約数の個数: 16

約数和(自身を含む): 23634432

約数和(自身を除く): 4825565

約数列:

[1, 7, 11, 77, 137, 959, 1507, 1783, 10549, 12481, 19613, 137291, 244271, 1709897, 2686981, 18808867]

約数ペア:

[(1, 18808867), (7, 2686981), (11, 1709897), (77, 244271), (137, 137291), (959, 19613), (1507, 12481), (1783, 10549)]