20189188

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{1097}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 36523872

約数和(自身を除く): 16334684

約数列:

[1, 2, 4, 43, 86, 107, 172, 214, 428, 1097, 2194, 4388, 4601, 9202, 18404, 47171, 94342, 117379, 188684, 234758, 469516, 5047297, 10094594, 20189188]

約数ペア:

[(1, 20189188), (2, 10094594), (4, 5047297), (43, 469516), (86, 234758), (107, 188684), (172, 117379), (214, 94342), (428, 47171), (1097, 18404), (2194, 9202), (4388, 4601)]