12740049

素因数分解:

$3^2\times 7^3\times {\mathrm{4127}}^1$

素因数の和:4154

約数の個数: 24

約数和(自身を含む): 21465600

約数和(自身を除く): 8725551

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 4127, 12381, 28889, 37143, 86667, 202223, 260001, 606669, 1415561, 1820007, 4246683, 12740049]

約数ペア:

[(1, 12740049), (3, 4246683), (7, 1820007), (9, 1415561), (21, 606669), (49, 260001), (63, 202223), (147, 86667), (343, 37143), (441, 28889), (1029, 12381), (3087, 4127)]