21605900

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{4597}}^1$

素因数の和:4658

約数の個数: 36

約数和(自身を含む): 47892768

約数和(自身を除く): 26286868

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 470, 940, 1175, 2350, 4597, 4700, 9194, 18388, 22985, 45970, 91940, 114925, 216059, 229850, 432118, 459700, 864236, 1080295, 2160590, 4321180, 5401475, 10802950, 21605900]

約数ペア:

[(1, 21605900), (2, 10802950), (4, 5401475), (5, 4321180), (10, 2160590), (20, 1080295), (25, 864236), (47, 459700), (50, 432118), (94, 229850), (100, 216059), (188, 114925), (235, 91940), (470, 45970), (940, 22985), (1175, 18388), (2350, 9194), (4597, 4700)]