20793261

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{827}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 30503520

約数和(自身を除く): 9710259

約数列:

[1, 3, 17, 29, 51, 87, 289, 493, 827, 867, 1479, 2481, 8381, 14059, 23983, 25143, 42177, 71949, 239003, 407711, 717009, 1223133, 6931087, 20793261]

約数ペア:

[(1, 20793261), (3, 6931087), (17, 1223133), (29, 717009), (51, 407711), (87, 239003), (289, 71949), (493, 42177), (827, 25143), (867, 23983), (1479, 14059), (2481, 8381)]