21867080

素因数分解:

$2^3\times 5^1\times {\mathrm{546677}}^1$

素因数の和:546688

約数の個数: 16

約数和(自身を含む): 49201020

約数和(自身を除く): 27333940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 546677, 1093354, 2186708, 2733385, 4373416, 5466770, 10933540, 21867080]

約数ペア:

[(1, 21867080), (2, 10933540), (4, 5466770), (5, 4373416), (8, 2733385), (10, 2186708), (20, 1093354), (40, 546677)]