20521744

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{11987}}^1$

素因数の和:12102

約数の個数: 20

約数和(自身を含む): 40135824

約数和(自身を除く): 19614080

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 11987, 23974, 47948, 95896, 191792, 1282609, 2565218, 5130436, 10260872, 20521744]

約数ペア:

[(1, 20521744), (2, 10260872), (4, 5130436), (8, 2565218), (16, 1282609), (107, 191792), (214, 95896), (428, 47948), (856, 23974), (1712, 11987)]