21337904

素因数分解:

$2^4\times 7^1\times {\mathrm{317}}^1\times {\mathrm{601}}^1$

素因数の和:933

約数の個数: 40

約数和(自身を含む): 47476128

約数和(自身を除く): 26138224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 317, 601, 634, 1202, 1268, 2219, 2404, 2536, 4207, 4438, 4808, 5072, 8414, 8876, 9616, 16828, 17752, 33656, 35504, 67312, 190517, 381034, 762068, 1333619, 1524136, 2667238, 3048272, 5334476, 10668952, 21337904]

約数ペア:

[(1, 21337904), (2, 10668952), (4, 5334476), (7, 3048272), (8, 2667238), (14, 1524136), (16, 1333619), (28, 762068), (56, 381034), (112, 190517), (317, 67312), (601, 35504), (634, 33656), (1202, 17752), (1268, 16828), (2219, 9616), (2404, 8876), (2536, 8414), (4207, 5072), (4438, 4808)]