21297400

素因数分解:

$2^3\times 5^2\times {\mathrm{106487}}^1$

素因数の和:106503

約数の個数: 24

約数和(自身を含む): 49516920

約数和(自身を除く): 28219520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 106487, 212974, 425948, 532435, 851896, 1064870, 2129740, 2662175, 4259480, 5324350, 10648700, 21297400]

約数ペア:

[(1, 21297400), (2, 10648700), (4, 5324350), (5, 4259480), (8, 2662175), (10, 2129740), (20, 1064870), (25, 851896), (40, 532435), (50, 425948), (100, 212974), (200, 106487)]