19885288

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{21997}}^1$

素因数の和:22116

約数の個数: 16

約数和(自身を含む): 37616580

約数和(自身を除く): 17731292

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 21997, 43994, 87988, 175976, 2485661, 4971322, 9942644, 19885288]

約数ペア:

[(1, 19885288), (2, 9942644), (4, 4971322), (8, 2485661), (113, 175976), (226, 87988), (452, 43994), (904, 21997)]