19389937

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 24213600

約数和(自身を除く): 4823663

約数列:

[1, 7, 19, 49, 59, 133, 353, 413, 931, 1121, 2471, 2891, 6707, 7847, 17297, 20827, 46949, 54929, 145789, 328643, 395713, 1020523, 2769991, 19389937]

約数ペア:

[(1, 19389937), (7, 2769991), (19, 1020523), (49, 395713), (59, 328643), (133, 145789), (353, 54929), (413, 46949), (931, 20827), (1121, 17297), (2471, 7847), (2891, 6707)]