20521952

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 44461872

約数和(自身を除く): 23939920

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 173, 176, 337, 346, 352, 674, 692, 1348, 1384, 1903, 2696, 2768, 3707, 3806, 5392, 5536, 7414, 7612, 10784, 14828, 15224, 29656, 30448, 58301, 59312, 60896, 116602, 118624, 233204, 466408, 641311, 932816, 1282622, 1865632, 2565244, 5130488, 10260976, 20521952]

約数ペア:

[(1, 20521952), (2, 10260976), (4, 5130488), (8, 2565244), (11, 1865632), (16, 1282622), (22, 932816), (32, 641311), (44, 466408), (88, 233204), (173, 118624), (176, 116602), (337, 60896), (346, 59312), (352, 58301), (674, 30448), (692, 29656), (1348, 15224), (1384, 14828), (1903, 10784), (2696, 7612), (2768, 7414), (3707, 5536), (3806, 5392)]