21729554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{141101}}^1$

素因数の和:141121

約数の個数: 16

約数和(自身を含む): 40637376

約数和(自身を除く): 18907822

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 141101, 282202, 987707, 1552111, 1975414, 3104222, 10864777, 21729554]

約数ペア:

[(1, 21729554), (2, 10864777), (7, 3104222), (11, 1975414), (14, 1552111), (22, 987707), (77, 282202), (154, 141101)]