17991128

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{54851}}^1$

素因数の和:54898

約数の個数: 16

約数和(自身を含む): 34556760

約数和(自身を除く): 16565632

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 54851, 109702, 219404, 438808, 2248891, 4497782, 8995564, 17991128]

約数ペア:

[(1, 17991128), (2, 8995564), (4, 4497782), (8, 2248891), (41, 438808), (82, 219404), (164, 109702), (328, 54851)]