21279228530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{447701}}^1$

素因数の和:447819

約数の個数: 48

約数和(自身を含む): 45015540696

約数和(自身を除く): 23736312166

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 97, 98, 194, 245, 485, 490, 679, 970, 1358, 3395, 4753, 6790, 9506, 23765, 47530, 447701, 895402, 2238505, 3133907, 4477010, 6267814, 15669535, 21937349, 31339070, 43426997, 43874698, 86853994, 109686745, 217134985, 219373490, 303988979, 434269970, 607977958, 1519944895, 2127922853, 3039889790, 4255845706, 10639614265, 21279228530]

約数ペア:

[(1, 21279228530), (2, 10639614265), (5, 4255845706), (7, 3039889790), (10, 2127922853), (14, 1519944895), (35, 607977958), (49, 434269970), (70, 303988979), (97, 219373490), (98, 217134985), (194, 109686745), (245, 86853994), (485, 43874698), (490, 43426997), (679, 31339070), (970, 21937349), (1358, 15669535), (3395, 6267814), (4753, 4477010), (6790, 3133907), (9506, 2238505), (23765, 895402), (47530, 447701)]