18171391

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{431}}^1$

素因数の和:774

約数の個数: 16

約数和(自身を含む): 21980160

約数和(自身を除く): 3808769

約数列:

[1, 7, 19, 133, 317, 431, 2219, 3017, 6023, 8189, 42161, 57323, 136627, 956389, 2595913, 18171391]

約数ペア:

[(1, 18171391), (7, 2595913), (19, 956389), (133, 136627), (317, 57323), (431, 42161), (2219, 8189), (3017, 6023)]