18965967

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{631}}^1$

素因数の和:910

約数の個数: 16

約数和(自身を含む): 26028288

約数和(自身を除く): 7062321

約数列:

[1, 3, 43, 129, 233, 631, 699, 1893, 10019, 27133, 30057, 81399, 147023, 441069, 6321989, 18965967]

約数ペア:

[(1, 18965967), (3, 6321989), (43, 441069), (129, 147023), (233, 81399), (631, 30057), (699, 27133), (1893, 10019)]