21338387

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1933}}^1$

素因数の和:2042

約数の個数: 16

約数和(自身を含む): 25992960

約数和(自身を除く): 4654573

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1933, 11039, 13531, 36727, 160439, 257089, 1123073, 3048341, 21338387]

約数ペア:

[(1, 21338387), (7, 3048341), (19, 1123073), (83, 257089), (133, 160439), (581, 36727), (1577, 13531), (1933, 11039)]