20780889

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1889}}^1$

素因数の和:2104

約数の個数: 16

約数和(自身を含む): 29332800

約数和(自身を除く): 8551911

約数列:

[1, 3, 19, 57, 193, 579, 1889, 3667, 5667, 11001, 35891, 107673, 364577, 1093731, 6926963, 20780889]

約数ペア:

[(1, 20780889), (3, 6926963), (19, 1093731), (57, 364577), (193, 107673), (579, 35891), (1889, 11001), (3667, 5667)]