21359900

素因数分解:

$2^2\times 5^2\times {\mathrm{213599}}^1$

素因数の和:213613

約数の個数: 18

約数和(自身を含む): 46351200

約数和(自身を除く): 24991300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 213599, 427198, 854396, 1067995, 2135990, 4271980, 5339975, 10679950, 21359900]

約数ペア:

[(1, 21359900), (2, 10679950), (4, 5339975), (5, 4271980), (10, 2135990), (20, 1067995), (25, 854396), (50, 427198), (100, 213599)]