28237629

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 22081731

約数列:

[1, 3, 7, 17, 19, 21, 23, 51, 57, 69, 119, 133, 161, 181, 323, 357, 391, 399, 437, 483, 543, 969, 1173, 1267, 1311, 2261, 2737, 3059, 3077, 3439, 3801, 4163, 6783, 7429, 8211, 9177, 9231, 10317, 12489, 21539, 22287, 24073, 29141, 52003, 58463, 64617, 70771, 72219, 79097, 87423, 156009, 175389, 212313, 237291, 409241, 495397, 553679, 1227723, 1344649, 1486191, 1661037, 4033947, 9412543, 28237629]

約数ペア:

[(1, 28237629), (3, 9412543), (7, 4033947), (17, 1661037), (19, 1486191), (21, 1344649), (23, 1227723), (51, 553679), (57, 495397), (69, 409241), (119, 237291), (133, 212313), (161, 175389), (181, 156009), (323, 87423), (357, 79097), (391, 72219), (399, 70771), (437, 64617), (483, 58463), (543, 52003), (969, 29141), (1173, 24073), (1267, 22287), (1311, 21539), (2261, 12489), (2737, 10317), (3059, 9231), (3077, 9177), (3439, 8211), (3801, 7429), (4163, 6783)]