20999788945

素因数分解:

$5^1\times {\mathrm{281}}^1\times {\mathrm{3121}}^1\times {\mathrm{4789}}^1$

素因数の和:8196

約数の個数: 16

約数和(自身を含む): 25302810960

約数和(自身を除く): 4303022015

約数列:

[1, 5, 281, 1405, 3121, 4789, 15605, 23945, 877001, 1345709, 4385005, 6728545, 14946469, 74732345, 4199957789, 20999788945]

約数ペア:

[(1, 20999788945), (5, 4199957789), (281, 74732345), (1405, 14946469), (3121, 6728545), (4789, 4385005), (15605, 1345709), (23945, 877001)]