21501400

素因数分解:

$2^3\times 5^2\times {\mathrm{107507}}^1$

素因数の和:107523

約数の個数: 24

約数和(自身を含む): 49991220

約数和(自身を除く): 28489820

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 107507, 215014, 430028, 537535, 860056, 1075070, 2150140, 2687675, 4300280, 5375350, 10750700, 21501400]

約数ペア:

[(1, 21501400), (2, 10750700), (4, 5375350), (5, 4300280), (8, 2687675), (10, 2150140), (20, 1075070), (25, 860056), (40, 537535), (50, 430028), (100, 215014), (200, 107507)]