21705368

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{63097}}^1$

素因数の和:63146

約数の個数: 16

約数和(自身を含む): 41644680

約数和(自身を除く): 19939312

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 63097, 126194, 252388, 504776, 2713171, 5426342, 10852684, 21705368]

約数ペア:

[(1, 21705368), (2, 10852684), (4, 5426342), (8, 2713171), (43, 504776), (86, 252388), (172, 126194), (344, 63097)]