19953265

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{743}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 24748416

約数和(自身を除く): 4795151

約数列:

[1, 5, 41, 131, 205, 655, 743, 3715, 5371, 26855, 30463, 97333, 152315, 486665, 3990653, 19953265]

約数ペア:

[(1, 19953265), (5, 3990653), (41, 486665), (131, 152315), (205, 97333), (655, 30463), (743, 26855), (3715, 5371)]