21728416

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15791}}^1$

素因数の和:15844

約数の個数: 24

約数和(自身を含む): 43775424

約数和(自身を除く): 22047008

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15791, 31582, 63164, 126328, 252656, 505312, 679013, 1358026, 2716052, 5432104, 10864208, 21728416]

約数ペア:

[(1, 21728416), (2, 10864208), (4, 5432104), (8, 2716052), (16, 1358026), (32, 679013), (43, 505312), (86, 252656), (172, 126328), (344, 63164), (688, 31582), (1376, 15791)]