21609112

素因数分解:

$2^3\times 7^1\times {\mathrm{385877}}^1$

素因数の和:385890

約数の個数: 16

約数和(自身を含む): 46305360

約数和(自身を除く): 24696248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 385877, 771754, 1543508, 2701139, 3087016, 5402278, 10804556, 21609112]

約数ペア:

[(1, 21609112), (2, 10804556), (4, 5402278), (7, 3087016), (8, 2701139), (14, 1543508), (28, 771754), (56, 385877)]