28640727

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1667}}^1$

素因数の和:1779

約数の個数: 24

約数和(自身を含む): 43714944

約数和(自身を除く): 15074217

約数列:

[1, 3, 9, 23, 69, 83, 207, 249, 747, 1667, 1909, 5001, 5727, 15003, 17181, 38341, 115023, 138361, 345069, 415083, 1245249, 3182303, 9546909, 28640727]

約数ペア:

[(1, 28640727), (3, 9546909), (9, 3182303), (23, 1245249), (69, 415083), (83, 345069), (207, 138361), (249, 115023), (747, 38341), (1667, 17181), (1909, 15003), (5001, 5727)]