21220191

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{34171}}^1$

素因数の和:34203

約数の個数: 16

約数和(自身を含む): 32805120

約数和(自身を除く): 11584929

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 34171, 102513, 307539, 785933, 922617, 2357799, 7073397, 21220191]

約数ペア:

[(1, 21220191), (3, 7073397), (9, 2357799), (23, 922617), (27, 785933), (69, 307539), (207, 102513), (621, 34171)]