219870021

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{282973}}^1$

素因数の和:283020

約数の個数: 16

約数和(自身を含む): 344096384

約数和(自身を除く): 124226363

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 282973, 848919, 1980811, 5942433, 10470001, 31410003, 73290007, 219870021]

約数ペア:

[(1, 219870021), (3, 73290007), (7, 31410003), (21, 10470001), (37, 5942433), (111, 1980811), (259, 848919), (777, 282973)]