205156721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{15401}}^1$

素因数の和:15592

約数の個数: 16

約数和(自身を含む): 257275008

約数和(自身を除く): 52118287

約数列:

[1, 7, 11, 77, 173, 1211, 1903, 13321, 15401, 107807, 169411, 1185877, 2664373, 18650611, 29308103, 205156721]

約数ペア:

[(1, 205156721), (7, 29308103), (11, 18650611), (77, 2664373), (173, 1185877), (1211, 169411), (1903, 107807), (13321, 15401)]