21580928

素因数分解:

$2^7\times {\mathrm{168601}}^1$

素因数の和:168615

約数の個数: 16

約数和(自身を含む): 42993510

約数和(自身を除く): 21412582

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 168601, 337202, 674404, 1348808, 2697616, 5395232, 10790464, 21580928]

約数ペア:

[(1, 21580928), (2, 10790464), (4, 5395232), (8, 2697616), (16, 1348808), (32, 674404), (64, 337202), (128, 168601)]