18710504

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 36300000

約数和(自身を除く): 17589496

約数列:

[1, 2, 4, 8, 43, 86, 109, 172, 218, 344, 436, 499, 872, 998, 1996, 3992, 4687, 9374, 18748, 21457, 37496, 42914, 54391, 85828, 108782, 171656, 217564, 435128, 2338813, 4677626, 9355252, 18710504]

約数ペア:

[(1, 18710504), (2, 9355252), (4, 4677626), (8, 2338813), (43, 435128), (86, 217564), (109, 171656), (172, 108782), (218, 85828), (344, 54391), (436, 42914), (499, 37496), (872, 21457), (998, 18748), (1996, 9374), (3992, 4687)]