20171571

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{56503}}^1$

素因数の和:56530

約数の個数: 16

約数和(自身を含む): 32546304

約数和(自身を除く): 12374733

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 56503, 169509, 395521, 960551, 1186563, 2881653, 6723857, 20171571]

約数ペア:

[(1, 20171571), (3, 6723857), (7, 2881653), (17, 1186563), (21, 960551), (51, 395521), (119, 169509), (357, 56503)]