19943264

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1069}}^1$

素因数の和:1143

約数の個数: 48

約数和(自身を含む): 43681680

約数和(自身を除く): 23738416

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 88, 106, 176, 212, 352, 424, 583, 848, 1069, 1166, 1696, 2138, 2332, 4276, 4664, 8552, 9328, 11759, 17104, 18656, 23518, 34208, 47036, 56657, 94072, 113314, 188144, 226628, 376288, 453256, 623227, 906512, 1246454, 1813024, 2492908, 4985816, 9971632, 19943264]

約数ペア:

[(1, 19943264), (2, 9971632), (4, 4985816), (8, 2492908), (11, 1813024), (16, 1246454), (22, 906512), (32, 623227), (44, 453256), (53, 376288), (88, 226628), (106, 188144), (176, 113314), (212, 94072), (352, 56657), (424, 47036), (583, 34208), (848, 23518), (1069, 18656), (1166, 17104), (1696, 11759), (2138, 9328), (2332, 8552), (4276, 4664)]