18996880581

素因数分解:

$3^2\times 7^1\times {\mathrm{301537787}}^1$

素因数の和:301537800

約数の個数: 12

約数和(自身を含む): 31359929952

約数和(自身を除く): 12363049371

約数列:

[1, 3, 7, 9, 21, 63, 301537787, 904613361, 2110764509, 2713840083, 6332293527, 18996880581]

約数ペア:

[(1, 18996880581), (3, 6332293527), (7, 2713840083), (9, 2110764509), (21, 904613361), (63, 301537787)]