20864216

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33013}}^1$

素因数の和:33098

約数の個数: 16

約数和(自身を含む): 39616800

約数和(自身を除く): 18752584

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33013, 66026, 132052, 264104, 2608027, 5216054, 10432108, 20864216]

約数ペア:

[(1, 20864216), (2, 10432108), (4, 5216054), (8, 2608027), (79, 264104), (158, 132052), (316, 66026), (632, 33013)]