20097975681

素因数分解:

$3^2\times 7^2\times {\mathrm{839}}^1\times {\mathrm{54319}}^1$

素因数の和:55178

約数の個数: 36

約数和(自身を含む): 33810940800

約数和(自身を除く): 13712965119

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 839, 2517, 5873, 7551, 17619, 41111, 52857, 54319, 123333, 162957, 369999, 380233, 488871, 1140699, 2661631, 3422097, 7984893, 23954679, 45573641, 136720923, 319015487, 410162769, 957046461, 2233108409, 2871139383, 6699325227, 20097975681]

約数ペア:

[(1, 20097975681), (3, 6699325227), (7, 2871139383), (9, 2233108409), (21, 957046461), (49, 410162769), (63, 319015487), (147, 136720923), (441, 45573641), (839, 23954679), (2517, 7984893), (5873, 3422097), (7551, 2661631), (17619, 1140699), (41111, 488871), (52857, 380233), (54319, 369999), (123333, 162957)]