21307400

素因数分解:

$2^3\times 5^2\times {\mathrm{106537}}^1$

素因数の和:106553

約数の個数: 24

約数和(自身を含む): 49540170

約数和(自身を除く): 28232770

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 106537, 213074, 426148, 532685, 852296, 1065370, 2130740, 2663425, 4261480, 5326850, 10653700, 21307400]

約数ペア:

[(1, 21307400), (2, 10653700), (4, 5326850), (5, 4261480), (8, 2663425), (10, 2130740), (20, 1065370), (25, 852296), (40, 532685), (50, 426148), (100, 213074), (200, 106537)]