26991979

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{719}}^1$

素因数の和:930

約数の個数: 16

約数和(自身を含む): 32071680

約数和(自身を除く): 5079701

約数列:

[1, 7, 31, 173, 217, 719, 1211, 5033, 5363, 22289, 37541, 124387, 156023, 870709, 3855997, 26991979]

約数ペア:

[(1, 26991979), (7, 3855997), (31, 870709), (173, 156023), (217, 124387), (719, 37541), (1211, 22289), (5033, 5363)]