12941667

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 20021760

約数和(自身を除く): 7080093

約数列:

[1, 3, 9, 27, 43, 71, 129, 157, 213, 387, 471, 639, 1161, 1413, 1917, 3053, 4239, 6751, 9159, 11147, 20253, 27477, 33441, 60759, 82431, 100323, 182277, 300969, 479321, 1437963, 4313889, 12941667]

約数ペア:

[(1, 12941667), (3, 4313889), (9, 1437963), (27, 479321), (43, 300969), (71, 182277), (129, 100323), (157, 82431), (213, 60759), (387, 33441), (471, 27477), (639, 20253), (1161, 11147), (1413, 9159), (1917, 6751), (3053, 4239)]