19404891

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 36

約数和(自身を含む): 31287984

約数和(自身を除く): 11883093

約数列:

[1, 3, 9, 11, 33, 99, 103, 121, 173, 309, 363, 519, 927, 1089, 1133, 1557, 1903, 3399, 5709, 10197, 12463, 17127, 17819, 20933, 37389, 53457, 62799, 112167, 160371, 188397, 196009, 588027, 1764081, 2156099, 6468297, 19404891]

約数ペア:

[(1, 19404891), (3, 6468297), (9, 2156099), (11, 1764081), (33, 588027), (99, 196009), (103, 188397), (121, 160371), (173, 112167), (309, 62799), (363, 53457), (519, 37389), (927, 20933), (1089, 17819), (1133, 17127), (1557, 12463), (1903, 10197), (3399, 5709)]