21086163

素因数分解:

$3^4\times 7^1\times {\mathrm{37189}}^1$

素因数の和:37208

約数の個数: 20

約数和(自身を含む): 35999920

約数和(自身を除く): 14913757

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37189, 111567, 260323, 334701, 780969, 1004103, 2342907, 3012309, 7028721, 21086163]

約数ペア:

[(1, 21086163), (3, 7028721), (7, 3012309), (9, 2342907), (21, 1004103), (27, 780969), (63, 334701), (81, 260323), (189, 111567), (567, 37189)]