19161488

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27851}}^1$

素因数の和:27902

約数の個数: 20

約数和(自身を含む): 37990128

約数和(自身を除く): 18828640

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27851, 55702, 111404, 222808, 445616, 1197593, 2395186, 4790372, 9580744, 19161488]

約数ペア:

[(1, 19161488), (2, 9580744), (4, 4790372), (8, 2395186), (16, 1197593), (43, 445616), (86, 222808), (172, 111404), (344, 55702), (688, 27851)]