20790847

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2269}}^1$

素因数の和:2311

約数の個数: 24

約数和(自身を含む): 27948240

約数和(自身を除く): 7157393

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 2269, 9163, 15883, 24959, 38573, 111181, 174713, 270011, 424303, 1222991, 1890077, 2970121, 20790847]

約数ペア:

[(1, 20790847), (7, 2970121), (11, 1890077), (17, 1222991), (49, 424303), (77, 270011), (119, 174713), (187, 111181), (539, 38573), (833, 24959), (1309, 15883), (2269, 9163)]