21288408543

素因数分解:

$3^2\times {\mathrm{4157}}^1\times {\mathrm{569011}}^1$

素因数の和:573174

約数の個数: 12

約数和(自身を含む): 30757374648

約数和(自身を除く): 9468966105

約数列:

[1, 3, 9, 4157, 12471, 37413, 569011, 1707033, 5121099, 2365378727, 7096136181, 21288408543]

約数ペア:

[(1, 21288408543), (3, 7096136181), (9, 2365378727), (4157, 5121099), (12471, 1707033), (37413, 569011)]