21094209

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{18169}}^1$

素因数の和:18221

約数の個数: 16

約数和(自身を含む): 31979200

約数和(自身を除く): 10884991

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 18169, 54507, 163521, 490563, 781267, 2343801, 7031403, 21094209]

約数ペア:

[(1, 21094209), (3, 7031403), (9, 2343801), (27, 781267), (43, 490563), (129, 163521), (387, 54507), (1161, 18169)]