21960554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{142601}}^1$

素因数の和:142621

約数の個数: 16

約数和(自身を含む): 41069376

約数和(自身を除く): 19108822

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 142601, 285202, 998207, 1568611, 1996414, 3137222, 10980277, 21960554]

約数ペア:

[(1, 21960554), (2, 10980277), (7, 3137222), (11, 1996414), (14, 1568611), (22, 998207), (77, 285202), (154, 142601)]