20487856

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{75323}}^1$

素因数の和:75348

約数の個数: 20

約数和(自身を含む): 42030792

約数和(自身を除く): 21542936

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 75323, 150646, 301292, 602584, 1205168, 1280491, 2560982, 5121964, 10243928, 20487856]

約数ペア:

[(1, 20487856), (2, 10243928), (4, 5121964), (8, 2560982), (16, 1280491), (17, 1205168), (34, 602584), (68, 301292), (136, 150646), (272, 75323)]