8640807

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1367}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 13723776

約数和(自身を除く): 5082969

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 1367, 2107, 4101, 6321, 9569, 28707, 58781, 66983, 176343, 200949, 411467, 1234401, 2880269, 8640807]

約数ペア:

[(1, 8640807), (3, 2880269), (7, 1234401), (21, 411467), (43, 200949), (49, 176343), (129, 66983), (147, 58781), (301, 28707), (903, 9569), (1367, 6321), (2107, 4101)]