31964289

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{80111}}^1$

素因数の和:80140

約数の個数: 16

約数和(自身を含む): 51271680

約数和(自身を除く): 19307391

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 80111, 240333, 560777, 1522109, 1682331, 4566327, 10654763, 31964289]

約数ペア:

[(1, 31964289), (3, 10654763), (7, 4566327), (19, 1682331), (21, 1522109), (57, 560777), (133, 240333), (399, 80111)]