21859400

素因数分解:

$2^3\times 5^2\times {\mathrm{109297}}^1$

素因数の和:109313

約数の個数: 24

約数和(自身を含む): 50823570

約数和(自身を除く): 28964170

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109297, 218594, 437188, 546485, 874376, 1092970, 2185940, 2732425, 4371880, 5464850, 10929700, 21859400]

約数ペア:

[(1, 21859400), (2, 10929700), (4, 5464850), (5, 4371880), (8, 2732425), (10, 2185940), (20, 1092970), (25, 874376), (40, 546485), (50, 437188), (100, 218594), (200, 109297)]