20178340077

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{56521961}}^1$

素因数の和:56521988

約数の個数: 16

約数和(自身を含む): 32556650112

約数和(自身を除く): 12378310035

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 56521961, 169565883, 395653727, 960873337, 1186961181, 2882620011, 6726113359, 20178340077]

約数ペア:

[(1, 20178340077), (3, 6726113359), (7, 2882620011), (17, 1186961181), (21, 960873337), (51, 395653727), (119, 169565883), (357, 56521961)]