21944293

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{439}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 25949440

約数和(自身を除く): 4005147

約数列:

[1, 7, 37, 193, 259, 439, 1351, 3073, 7141, 16243, 49987, 84727, 113701, 593089, 3134899, 21944293]

約数ペア:

[(1, 21944293), (7, 3134899), (37, 593089), (193, 113701), (259, 84727), (439, 49987), (1351, 16243), (3073, 7141)]