20257868

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{479}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 36220800

約数和(自身を除く): 15962932

約数列:

[1, 2, 4, 97, 109, 194, 218, 388, 436, 479, 958, 1916, 10573, 21146, 42292, 46463, 52211, 92926, 104422, 185852, 208844, 5064467, 10128934, 20257868]

約数ペア:

[(1, 20257868), (2, 10128934), (4, 5064467), (97, 208844), (109, 185852), (194, 104422), (218, 92926), (388, 52211), (436, 46463), (479, 42292), (958, 21146), (1916, 10573)]