20805554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{135101}}^1$

素因数の和:135121

約数の個数: 16

約数和(自身を含む): 38909376

約数和(自身を除く): 18103822

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 135101, 270202, 945707, 1486111, 1891414, 2972222, 10402777, 20805554]

約数ペア:

[(1, 20805554), (2, 10402777), (7, 2972222), (11, 1891414), (14, 1486111), (22, 945707), (77, 270202), (154, 135101)]