19701891

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1567}}^1$

素因数の和:1711

約数の個数: 24

約数和(自身を含む): 31309824

約数和(自身を除く): 11607933

約数列:

[1, 3, 9, 11, 33, 99, 127, 381, 1143, 1397, 1567, 4191, 4701, 12573, 14103, 17237, 51711, 155133, 199009, 597027, 1791081, 2189099, 6567297, 19701891]

約数ペア:

[(1, 19701891), (3, 6567297), (9, 2189099), (11, 1791081), (33, 597027), (99, 199009), (127, 155133), (381, 51711), (1143, 17237), (1397, 14103), (1567, 12573), (4191, 4701)]