20979486

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:279

約数の個数: 80

約数和(自身を含む): 52393968

約数和(自身を除く): 31414482

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 61, 66, 81, 99, 122, 162, 183, 193, 198, 297, 366, 386, 549, 579, 594, 671, 891, 1098, 1158, 1342, 1647, 1737, 1782, 2013, 2123, 3294, 3474, 4026, 4246, 4941, 5211, 6039, 6369, 9882, 10422, 11773, 12078, 12738, 15633, 18117, 19107, 23546, 31266, 35319, 36234, 38214, 54351, 57321, 70638, 105957, 108702, 114642, 129503, 171963, 211914, 259006, 317871, 343926, 388509, 635742, 777018, 953613, 1165527, 1907226, 2331054, 3496581, 6993162, 10489743, 20979486]

約数ペア:

[(1, 20979486), (2, 10489743), (3, 6993162), (6, 3496581), (9, 2331054), (11, 1907226), (18, 1165527), (22, 953613), (27, 777018), (33, 635742), (54, 388509), (61, 343926), (66, 317871), (81, 259006), (99, 211914), (122, 171963), (162, 129503), (183, 114642), (193, 108702), (198, 105957), (297, 70638), (366, 57321), (386, 54351), (549, 38214), (579, 36234), (594, 35319), (671, 31266), (891, 23546), (1098, 19107), (1158, 18117), (1342, 15633), (1647, 12738), (1737, 12078), (1782, 11773), (2013, 10422), (2123, 9882), (3294, 6369), (3474, 6039), (4026, 5211), (4246, 4941)]