20005419

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{25747}}^1$

素因数の和:25794

約数の個数: 16

約数和(自身を含む): 31309568

約数和(自身を除く): 11304149

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 25747, 77241, 180229, 540687, 952639, 2857917, 6668473, 20005419]

約数ペア:

[(1, 20005419), (3, 6668473), (7, 2857917), (21, 952639), (37, 540687), (111, 180229), (259, 77241), (777, 25747)]