20731361

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 25116480

約数和(自身を除く): 4385119

約数列:

[1, 7, 49, 59, 71, 101, 413, 497, 707, 2891, 3479, 4189, 4949, 5959, 7171, 29323, 41713, 50197, 205261, 291991, 351379, 423089, 2961623, 20731361]

約数ペア:

[(1, 20731361), (7, 2961623), (49, 423089), (59, 351379), (71, 291991), (101, 205261), (413, 50197), (497, 41713), (707, 29323), (2891, 7171), (3479, 5959), (4189, 4949)]