18497181

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{643}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 25389056

約数和(自身を除く): 6891875

約数列:

[1, 3, 43, 129, 223, 643, 669, 1929, 9589, 27649, 28767, 82947, 143389, 430167, 6165727, 18497181]

約数ペア:

[(1, 18497181), (3, 6165727), (43, 430167), (129, 143389), (223, 82947), (643, 28767), (669, 27649), (1929, 9589)]