128420721

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{11087}}^1$

素因数の和:11123

約数の個数: 40

約数和(自身を含む): 225396864

約数和(自身を除く): 96976143

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 3861, 11087, 11583, 33261, 99783, 121957, 144131, 299349, 365871, 432393, 898047, 1097613, 1297179, 1585441, 3292839, 3891537, 4756323, 9878517, 11674611, 14268969, 42806907, 128420721]

約数ペア:

[(1, 128420721), (3, 42806907), (9, 14268969), (11, 11674611), (13, 9878517), (27, 4756323), (33, 3891537), (39, 3292839), (81, 1585441), (99, 1297179), (117, 1097613), (143, 898047), (297, 432393), (351, 365871), (429, 299349), (891, 144131), (1053, 121957), (1287, 99783), (3861, 33261), (11087, 11583)]