21135496

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{24691}}^1$

素因数の和:24804

約数の個数: 16

約数和(自身を含む): 40001040

約数和(自身を除く): 18865544

約数列:

[1, 2, 4, 8, 107, 214, 428, 856, 24691, 49382, 98764, 197528, 2641937, 5283874, 10567748, 21135496]

約数ペア:

[(1, 21135496), (2, 10567748), (4, 5283874), (8, 2641937), (107, 197528), (214, 98764), (428, 49382), (856, 24691)]