18781712

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27299}}^1$

素因数の和:27350

約数の個数: 20

約数和(自身を含む): 37237200

約数和(自身を除く): 18455488

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27299, 54598, 109196, 218392, 436784, 1173857, 2347714, 4695428, 9390856, 18781712]

約数ペア:

[(1, 18781712), (2, 9390856), (4, 4695428), (8, 2347714), (16, 1173857), (43, 436784), (86, 218392), (172, 109196), (344, 54598), (688, 27299)]