18978862

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{12437}}^1$

素因数の和:12555

約数の個数: 16

約数和(自身を含む): 32836320

約数和(自身を除く): 13857458

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 12437, 24874, 87059, 174118, 1355633, 2711266, 9489431, 18978862]

約数ペア:

[(1, 18978862), (2, 9489431), (7, 2711266), (14, 1355633), (109, 174118), (218, 87059), (763, 24874), (1526, 12437)]