19388781

素因数分解:

$3^3\times {\mathrm{443}}^1\times {\mathrm{1621}}^1$

素因数の和:2073

約数の個数: 16

約数和(自身を含む): 28806720

約数和(自身を除く): 9417939

約数列:

[1, 3, 9, 27, 443, 1329, 1621, 3987, 4863, 11961, 14589, 43767, 718103, 2154309, 6462927, 19388781]

約数ペア:

[(1, 19388781), (3, 6462927), (9, 2154309), (27, 718103), (443, 43767), (1329, 14589), (1621, 11961), (3987, 4863)]