20568849

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51551}}^1$

素因数の和:51580

約数の個数: 16

約数和(自身を含む): 32993280

約数和(自身を除く): 12424431

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51551, 154653, 360857, 979469, 1082571, 2938407, 6856283, 20568849]

約数ペア:

[(1, 20568849), (3, 6856283), (7, 2938407), (19, 1082571), (21, 979469), (57, 360857), (133, 154653), (399, 51551)]