17681987

素因数分解:

${\mathrm{43}}^2\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:290

約数の個数: 12

約数和(自身を含む): 18490824

約数和(自身を除く): 808837

約数列:

[1, 43, 73, 131, 1849, 3139, 5633, 9563, 134977, 242219, 411209, 17681987]

約数ペア:

[(1, 17681987), (43, 411209), (73, 242219), (131, 134977), (1849, 9563), (3139, 5633)]