21806008

素因数分解:

$2^3\times 7^1\times {\mathrm{439}}^1\times {\mathrm{887}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 46886400

約数和(自身を除く): 25080392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 439, 878, 887, 1756, 1774, 3073, 3512, 3548, 6146, 6209, 7096, 12292, 12418, 24584, 24836, 49672, 389393, 778786, 1557572, 2725751, 3115144, 5451502, 10903004, 21806008]

約数ペア:

[(1, 21806008), (2, 10903004), (4, 5451502), (7, 3115144), (8, 2725751), (14, 1557572), (28, 778786), (56, 389393), (439, 49672), (878, 24836), (887, 24584), (1756, 12418), (1774, 12292), (3073, 7096), (3512, 6209), (3548, 6146)]