21986576

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80833}}^1$

素因数の和:80858

約数の個数: 20

約数和(自身を含む): 45105372

約数和(自身を除く): 23118796

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80833, 161666, 323332, 646664, 1293328, 1374161, 2748322, 5496644, 10993288, 21986576]

約数ペア:

[(1, 21986576), (2, 10993288), (4, 5496644), (8, 2748322), (16, 1374161), (17, 1293328), (34, 646664), (68, 323332), (136, 161666), (272, 80833)]