128210007891

素因数分解:

$3^1\times 7^1\times {\mathrm{6105238471}}^1$

素因数の和:6105238481

約数の個数: 8

約数和(自身を含む): 195367631104

約数和(自身を除く): 67157623213

約数列:

[1, 3, 7, 21, 6105238471, 18315715413, 42736669297, 128210007891]

約数ペア:

[(1, 128210007891), (3, 42736669297), (7, 18315715413), (21, 6105238471)]