21897856

素因数分解:

$2^7\times {\mathrm{171077}}^1$

素因数の和:171091

約数の個数: 16

約数和(自身を含む): 43624890

約数和(自身を除く): 21727034

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 171077, 342154, 684308, 1368616, 2737232, 5474464, 10948928, 21897856]

約数ペア:

[(1, 21897856), (2, 10948928), (4, 5474464), (8, 2737232), (16, 1368616), (32, 684308), (64, 342154), (128, 171077)]