21919400

素因数分解:

$2^3\times 5^2\times {\mathrm{109597}}^1$

素因数の和:109613

約数の個数: 24

約数和(自身を含む): 50963070

約数和(自身を除く): 29043670

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109597, 219194, 438388, 547985, 876776, 1095970, 2191940, 2739925, 4383880, 5479850, 10959700, 21919400]

約数ペア:

[(1, 21919400), (2, 10959700), (4, 5479850), (5, 4383880), (8, 2739925), (10, 2191940), (20, 1095970), (25, 876776), (40, 547985), (50, 438388), (100, 219194), (200, 109597)]