20837349

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{569}}^1$

素因数の和:901

約数の個数: 24

約数和(自身を含む): 32574360

約数和(自身を除く): 11737011

約数列:

[1, 3, 9, 13, 39, 117, 313, 569, 939, 1707, 2817, 4069, 5121, 7397, 12207, 22191, 36621, 66573, 178097, 534291, 1602873, 2315261, 6945783, 20837349]

約数ペア:

[(1, 20837349), (3, 6945783), (9, 2315261), (13, 1602873), (39, 534291), (117, 178097), (313, 66573), (569, 36621), (939, 22191), (1707, 12207), (2817, 7397), (4069, 5121)]