20120685429

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{937}}^1\times {\mathrm{4019}}^1$

素因数の和:5109

約数の個数: 32

約数和(自身を含む): 29140433280

約数和(自身を除く): 9019747851

約数列:

[1, 3, 13, 39, 137, 411, 937, 1781, 2811, 4019, 5343, 12057, 12181, 36543, 52247, 128369, 156741, 385107, 550603, 1651809, 1668797, 3765803, 5006391, 7157839, 11297409, 21473517, 48955439, 146866317, 515915011, 1547745033, 6706895143, 20120685429]

約数ペア:

[(1, 20120685429), (3, 6706895143), (13, 1547745033), (39, 515915011), (137, 146866317), (411, 48955439), (937, 21473517), (1781, 11297409), (2811, 7157839), (4019, 5006391), (5343, 3765803), (12057, 1668797), (12181, 1651809), (36543, 550603), (52247, 385107), (128369, 156741)]