21511966

素因数分解:

$2^1\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{1361}}^1$

素因数の和:2499

約数の個数: 16

約数和(自身を含む): 36937440

約数和(自身を除く): 15425474

約数列:

[1, 2, 7, 14, 1129, 1361, 2258, 2722, 7903, 9527, 15806, 19054, 1536569, 3073138, 10755983, 21511966]

約数ペア:

[(1, 21511966), (2, 10755983), (7, 3073138), (14, 1536569), (1129, 19054), (1361, 15806), (2258, 9527), (2722, 7903)]