21505118978

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{605471}}^1$

素因数の和:605582

約数の個数: 32

約数和(自身を含む): 38362705920

約数和(自身を除く): 16857586942

約数列:

[1, 2, 7, 14, 43, 59, 86, 118, 301, 413, 602, 826, 2537, 5074, 17759, 35518, 605471, 1210942, 4238297, 8476594, 26035253, 35722789, 52070506, 71445578, 182246771, 250059523, 364493542, 500119046, 1536079927, 3072159854, 10752559489, 21505118978]

約数ペア:

[(1, 21505118978), (2, 10752559489), (7, 3072159854), (14, 1536079927), (43, 500119046), (59, 364493542), (86, 250059523), (118, 182246771), (301, 71445578), (413, 52070506), (602, 35722789), (826, 26035253), (2537, 8476594), (5074, 4238297), (17759, 1210942), (35518, 605471)]