2005619

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^2$

素因数の和:147

約数の個数: 18

約数和(自身を含む): 2587572

約数和(自身を除く): 581953

約数列:

[1, 7, 11, 49, 61, 77, 427, 539, 671, 2989, 3721, 4697, 26047, 32879, 40931, 182329, 286517, 2005619]

約数ペア:

[(1, 2005619), (7, 286517), (11, 182329), (49, 40931), (61, 32879), (77, 26047), (427, 4697), (539, 3721), (671, 2989)]