20291887

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8501}}^1$

素因数の和:8550

約数の個数: 16

約数和(自身を含む): 26118144

約数和(自身を除く): 5826257

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8501, 59507, 93511, 263531, 654577, 1844717, 2898841, 20291887]

約数ペア:

[(1, 20291887), (7, 2898841), (11, 1844717), (31, 654577), (77, 263531), (217, 93511), (341, 59507), (2387, 8501)]