21704336

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31547}}^1$

素因数の和:31598

約数の個数: 20

約数和(自身を含む): 43031472

約数和(自身を除く): 21327136

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31547, 63094, 126188, 252376, 504752, 1356521, 2713042, 5426084, 10852168, 21704336]

約数ペア:

[(1, 21704336), (2, 10852168), (4, 5426084), (8, 2713042), (16, 1356521), (43, 504752), (86, 252376), (172, 126188), (344, 63094), (688, 31547)]