20818259

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{9323}}^1$

素因数の和:9370

約数の個数: 16

約数和(自身を含む): 26853120

約数和(自身を除く): 6034861

約数列:

[1, 7, 11, 29, 77, 203, 319, 2233, 9323, 65261, 102553, 270367, 717871, 1892569, 2974037, 20818259]

約数ペア:

[(1, 20818259), (7, 2974037), (11, 1892569), (29, 717871), (77, 270367), (203, 102553), (319, 65261), (2233, 9323)]