21073299

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28439}}^1$

素因数の和:28474

約数の個数: 16

約数和(自身を含む): 31852800

約数和(自身を除く): 10779501

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 28439, 85317, 369707, 540341, 1109121, 1621023, 7024433, 21073299]

約数ペア:

[(1, 21073299), (3, 7024433), (13, 1621023), (19, 1109121), (39, 540341), (57, 369707), (247, 85317), (741, 28439)]