18875781

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{24107}}^1$

素因数の和:24145

約数の個数: 16

約数和(自身を含む): 28929600

約数和(自身を除く): 10053819

約数列:

[1, 3, 9, 27, 29, 87, 261, 783, 24107, 72321, 216963, 650889, 699103, 2097309, 6291927, 18875781]

約数ペア:

[(1, 18875781), (3, 6291927), (9, 2097309), (27, 699103), (29, 650889), (87, 216963), (261, 72321), (783, 24107)]