21945856

素因数分解:

$2^9\times {\mathrm{42863}}^1$

素因数の和:42881

約数の個数: 20

約数和(自身を含む): 43849872

約数和(自身を除く): 21904016

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 42863, 85726, 171452, 342904, 685808, 1371616, 2743232, 5486464, 10972928, 21945856]

約数ペア:

[(1, 21945856), (2, 10972928), (4, 5486464), (8, 2743232), (16, 1371616), (32, 685808), (64, 342904), (128, 171452), (256, 85726), (512, 42863)]