20880849

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 33247872

約数和(自身を除く): 12367023

約数列:

[1, 3, 11, 23, 33, 41, 61, 69, 121, 123, 183, 253, 363, 451, 671, 759, 943, 1353, 1403, 2013, 2501, 2783, 2829, 4209, 4961, 7381, 7503, 8349, 10373, 14883, 15433, 22143, 27511, 31119, 46299, 57523, 82533, 114103, 169763, 172569, 302621, 342309, 509289, 632753, 907863, 1898259, 6960283, 20880849]

約数ペア:

[(1, 20880849), (3, 6960283), (11, 1898259), (23, 907863), (33, 632753), (41, 509289), (61, 342309), (69, 302621), (121, 172569), (123, 169763), (183, 114103), (253, 82533), (363, 57523), (451, 46299), (671, 31119), (759, 27511), (943, 22143), (1353, 15433), (1403, 14883), (2013, 10373), (2501, 8349), (2783, 7503), (2829, 7381), (4209, 4961)]