18666687

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{11131}}^1$

素因数の和:11190

約数の個数: 16

約数和(自身を含む): 27429248

約数和(自身を除く): 8762561

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 11131, 33393, 144703, 434109, 478633, 1435899, 6222229, 18666687]

約数ペア:

[(1, 18666687), (3, 6222229), (13, 1435899), (39, 478633), (43, 434109), (129, 144703), (559, 33393), (1677, 11131)]