21858104

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63541}}^1$

素因数の和:63590

約数の個数: 16

約数和(自身を含む): 41937720

約数和(自身を除く): 20079616

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63541, 127082, 254164, 508328, 2732263, 5464526, 10929052, 21858104]

約数ペア:

[(1, 21858104), (2, 10929052), (4, 5464526), (8, 2732263), (43, 508328), (86, 254164), (172, 127082), (344, 63541)]