20996858127

素因数分解:

$3^1\times 7^1\times {\mathrm{3881}}^1\times {\mathrm{257627}}^1$

素因数の和:261518

約数の個数: 16

約数和(自身を含む): 32003580672

約数和(自身を除く): 11006722545

約数列:

[1, 3, 7, 21, 3881, 11643, 27167, 81501, 257627, 772881, 1803389, 5410167, 999850387, 2999551161, 6998952709, 20996858127]

約数ペア:

[(1, 20996858127), (3, 6998952709), (7, 2999551161), (21, 999850387), (3881, 5410167), (11643, 1803389), (27167, 772881), (81501, 257627)]