20296989

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 30270240

約数和(自身を除く): 9973251

約数列:

[1, 3, 9, 43, 129, 179, 293, 387, 537, 879, 1611, 2637, 7697, 12599, 23091, 37797, 52447, 69273, 113391, 157341, 472023, 2255221, 6765663, 20296989]

約数ペア:

[(1, 20296989), (3, 6765663), (9, 2255221), (43, 472023), (129, 157341), (179, 113391), (293, 69273), (387, 52447), (537, 37797), (879, 23091), (1611, 12599), (2637, 7697)]