20198507949

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{17397509}}^1$

素因数の和:17397561

約数の個数: 16

約数和(自身を含む): 30619617600

約数和(自身を除く): 10421109651

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 17397509, 52192527, 156577581, 469732743, 748092887, 2244278661, 6732835983, 20198507949]

約数ペア:

[(1, 20198507949), (3, 6732835983), (9, 2244278661), (27, 748092887), (43, 469732743), (129, 156577581), (387, 52192527), (1161, 17397509)]