20831972

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{2347}}^1$

素因数の和:2675

約数の個数: 24

約数和(自身を含む): 41813184

約数和(自身を除く): 20981212

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 2347, 4438, 4694, 8876, 9388, 16429, 32858, 65716, 743999, 1487998, 2975996, 5207993, 10415986, 20831972]

約数ペア:

[(1, 20831972), (2, 10415986), (4, 5207993), (7, 2975996), (14, 1487998), (28, 743999), (317, 65716), (634, 32858), (1268, 16429), (2219, 9388), (2347, 8876), (4438, 4694)]