20011413

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1297}}^1$

素因数の和:1476

約数の個数: 16

約数和(自身を含む): 27621440

約数和(自身を除く): 7610027

約数列:

[1, 3, 37, 111, 139, 417, 1297, 3891, 5143, 15429, 47989, 143967, 180283, 540849, 6670471, 20011413]

約数ペア:

[(1, 20011413), (3, 6670471), (37, 540849), (111, 180283), (139, 143967), (417, 47989), (1297, 15429), (3891, 5143)]