20786703

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{883}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 33945600

約数和(自身を除く): 13158897

約数列:

[1, 3, 7, 19, 21, 57, 59, 133, 177, 399, 413, 883, 1121, 1239, 2649, 3363, 6181, 7847, 16777, 18543, 23541, 50331, 52097, 117439, 156291, 352317, 364679, 989843, 1094037, 2969529, 6928901, 20786703]

約数ペア:

[(1, 20786703), (3, 6928901), (7, 2969529), (19, 1094037), (21, 989843), (57, 364679), (59, 352317), (133, 156291), (177, 117439), (399, 52097), (413, 50331), (883, 23541), (1121, 18543), (1239, 16777), (2649, 7847), (3363, 6181)]