21452288

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:335

約数の個数: 80

約数和(自身を含む): 50528016

約数和(自身を除く): 29075728

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 128, 143, 176, 208, 256, 286, 293, 352, 416, 512, 572, 586, 704, 832, 1144, 1172, 1408, 1664, 2288, 2344, 2816, 3223, 3328, 3809, 4576, 4688, 5632, 6446, 6656, 7618, 9152, 9376, 12892, 15236, 18304, 18752, 25784, 30472, 36608, 37504, 41899, 51568, 60944, 73216, 75008, 83798, 103136, 121888, 150016, 167596, 206272, 243776, 335192, 412544, 487552, 670384, 825088, 975104, 1340768, 1650176, 1950208, 2681536, 5363072, 10726144, 21452288]

約数ペア:

[(1, 21452288), (2, 10726144), (4, 5363072), (8, 2681536), (11, 1950208), (13, 1650176), (16, 1340768), (22, 975104), (26, 825088), (32, 670384), (44, 487552), (52, 412544), (64, 335192), (88, 243776), (104, 206272), (128, 167596), (143, 150016), (176, 121888), (208, 103136), (256, 83798), (286, 75008), (293, 73216), (352, 60944), (416, 51568), (512, 41899), (572, 37504), (586, 36608), (704, 30472), (832, 25784), (1144, 18752), (1172, 18304), (1408, 15236), (1664, 12892), (2288, 9376), (2344, 9152), (2816, 7618), (3223, 6656), (3328, 6446), (3809, 5632), (4576, 4688)]