19137881

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 23595264

約数和(自身を除く): 4457383

約数列:

[1, 7, 31, 43, 49, 217, 293, 301, 1333, 1519, 2051, 2107, 9083, 9331, 12599, 14357, 63581, 65317, 88193, 390569, 445067, 617351, 2733983, 19137881]

約数ペア:

[(1, 19137881), (7, 2733983), (31, 617351), (43, 445067), (49, 390569), (217, 88193), (293, 65317), (301, 63581), (1333, 14357), (1519, 12599), (2051, 9331), (2107, 9083)]