20380857

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{31307}}^1$

素因数の和:31348

約数の個数: 16

約数和(自身を含む): 32059392

約数和(自身を除く): 11678535

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 31307, 93921, 219149, 657447, 970517, 2911551, 6793619, 20380857]

約数ペア:

[(1, 20380857), (3, 6793619), (7, 2911551), (21, 970517), (31, 657447), (93, 219149), (217, 93921), (651, 31307)]