21868190

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{24571}}^1$

素因数の和:24667

約数の個数: 16

約数和(自身を含む): 39806640

約数和(自身を除く): 17938450

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 24571, 49142, 122855, 245710, 2186819, 4373638, 10934095, 21868190]

約数ペア:

[(1, 21868190), (2, 10934095), (5, 4373638), (10, 2186819), (89, 245710), (178, 122855), (445, 49142), (890, 24571)]