20684013

素因数分解:

$3^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{4339}}^1$

素因数の和:4576

約数の個数: 16

約数和(自身を含む): 31664640

約数和(自身を除く): 10980627

約数列:

[1, 3, 7, 21, 227, 681, 1589, 4339, 4767, 13017, 30373, 91119, 984953, 2954859, 6894671, 20684013]

約数ペア:

[(1, 20684013), (3, 6894671), (7, 2954859), (21, 984953), (227, 91119), (681, 30373), (1589, 13017), (4339, 4767)]