3999387

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{103}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 6299904

約数和(自身を除く): 2300517

約数列:

[1, 3, 7, 21, 43, 103, 129, 301, 309, 721, 903, 1849, 2163, 4429, 5547, 12943, 13287, 31003, 38829, 93009, 190447, 571341, 1333129, 3999387]

約数ペア:

[(1, 3999387), (3, 1333129), (7, 571341), (21, 190447), (43, 93009), (103, 38829), (129, 31003), (301, 13287), (309, 12943), (721, 5547), (903, 4429), (1849, 2163)]