21000865885

素因数分解:

$5^1\times {\mathrm{433}}^1\times {\mathrm{9700169}}^1$

素因数の和:9700607

約数の個数: 8

約数和(自身を含む): 25259242680

約数和(自身を除く): 4258376795

約数列:

[1, 5, 433, 2165, 9700169, 48500845, 4200173177, 21000865885]

約数ペア:

[(1, 21000865885), (5, 4200173177), (433, 48500845), (2165, 9700169)]