20512157855

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3881203}}^1$

素因数の和:3881366

約数の個数: 16

約数和(自身を含む): 28317264384

約数和(自身を除く): 7805106529

約数列:

[1, 5, 7, 35, 151, 755, 1057, 5285, 3881203, 19406015, 27168421, 135842105, 586061653, 2930308265, 4102431571, 20512157855]

約数ペア:

[(1, 20512157855), (5, 4102431571), (7, 2930308265), (35, 586061653), (151, 135842105), (755, 27168421), (1057, 19406015), (5285, 3881203)]