20831321518

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{87526561}}^1$

素因数の和:87526587

約数の個数: 16

約数和(自身を含む): 37811474784

約数和(自身を除く): 16980153266

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 87526561, 175053122, 612685927, 1225371854, 1487951537, 2975903074, 10415660759, 20831321518]

約数ペア:

[(1, 20831321518), (2, 10415660759), (7, 2975903074), (14, 1487951537), (17, 1225371854), (34, 612685927), (119, 175053122), (238, 87526561)]