19918197

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{56747}}^1$

素因数の和:56769

約数の個数: 16

約数和(自身を含む): 31778880

約数和(自身を除く): 11860683

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 56747, 170241, 510723, 737711, 1532169, 2213133, 6639399, 19918197]

約数ペア:

[(1, 19918197), (3, 6639399), (9, 2213133), (13, 1532169), (27, 737711), (39, 510723), (117, 170241), (351, 56747)]