20321168

素因数分解:

$2^4\times 7^1\times {\mathrm{181439}}^1$

素因数の和:181454

約数の個数: 20

約数和(自身を含む): 44997120

約数和(自身を除く): 24675952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 181439, 362878, 725756, 1270073, 1451512, 2540146, 2903024, 5080292, 10160584, 20321168]

約数ペア:

[(1, 20321168), (2, 10160584), (4, 5080292), (7, 2903024), (8, 2540146), (14, 1451512), (16, 1270073), (28, 725756), (56, 362878), (112, 181439)]