19263987

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{2309}}^1$

素因数の和:2424

約数の個数: 20

約数和(自身を含む): 29069040

約数和(自身を除く): 9805053

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2309, 2781, 6927, 8343, 20781, 62343, 187029, 237827, 713481, 2140443, 6421329, 19263987]

約数ペア:

[(1, 19263987), (3, 6421329), (9, 2140443), (27, 713481), (81, 237827), (103, 187029), (309, 62343), (927, 20781), (2309, 8343), (2781, 6927)]