20985105

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{37811}}^1$

素因数の和:37856

約数の個数: 16

約数和(自身を含む): 34484544

約数和(自身を除く): 13499439

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 37811, 113433, 189055, 567165, 1399007, 4197021, 6995035, 20985105]

約数ペア:

[(1, 20985105), (3, 6995035), (5, 4197021), (15, 1399007), (37, 567165), (111, 189055), (185, 113433), (555, 37811)]