21919149

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5897}}^1$

素因数の和:5969

約数の個数: 24

約数和(自身を含む): 36803520

約数和(自身を除く): 14884371

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5897, 17691, 41279, 53073, 123837, 347923, 371511, 1043769, 2435461, 3131307, 7306383, 21919149]

約数ペア:

[(1, 21919149), (3, 7306383), (7, 3131307), (9, 2435461), (21, 1043769), (59, 371511), (63, 347923), (177, 123837), (413, 53073), (531, 41279), (1239, 17691), (3717, 5897)]