19788987

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{857}}^1$

素因数の和:1082

約数の個数: 16

約数和(自身を含む): 27181440

約数和(自身を除く): 7392453

約数列:

[1, 3, 43, 129, 179, 537, 857, 2571, 7697, 23091, 36851, 110553, 153403, 460209, 6596329, 19788987]

約数ペア:

[(1, 19788987), (3, 6596329), (43, 460209), (129, 153403), (179, 110553), (537, 36851), (857, 23091), (2571, 7697)]