20187237

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{25981}}^1$

素因数の和:26028

約数の個数: 16

約数和(自身を含む): 31594112

約数和(自身を除く): 11406875

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 25981, 77943, 181867, 545601, 961297, 2883891, 6729079, 20187237]

約数ペア:

[(1, 20187237), (3, 6729079), (7, 2883891), (21, 961297), (37, 545601), (111, 181867), (259, 77943), (777, 25981)]