21000824537

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{876971}}^1$

素因数の和:877300

約数の個数: 16

約数和(自身を含む): 26267065344

約数和(自身を除く): 5266240807

約数列:

[1, 7, 11, 77, 311, 2177, 3421, 23947, 876971, 6138797, 9646681, 67526767, 272737981, 1909165867, 3000117791, 21000824537]

約数ペア:

[(1, 21000824537), (7, 3000117791), (11, 1909165867), (77, 272737981), (311, 67526767), (2177, 9646681), (3421, 6138797), (23947, 876971)]