21866440

素因数分解:

$2^3\times 5^1\times {\mathrm{546661}}^1$

素因数の和:546672

約数の個数: 16

約数和(自身を含む): 49199580

約数和(自身を除く): 27333140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 546661, 1093322, 2186644, 2733305, 4373288, 5466610, 10933220, 21866440]

約数ペア:

[(1, 21866440), (2, 10933220), (4, 5466610), (5, 4373288), (8, 2733305), (10, 2186644), (20, 1093322), (40, 546661)]