28478439

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 48518400

約数和(自身を除く): 20039961

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 121, 207, 253, 297, 363, 379, 621, 759, 1089, 1137, 2277, 2783, 3267, 3411, 4169, 6831, 8349, 8717, 10233, 12507, 25047, 26151, 37521, 45859, 75141, 78453, 95887, 112563, 137577, 235359, 287661, 412731, 862983, 1054757, 1238193, 2588949, 3164271, 9492813, 28478439]

約数ペア:

[(1, 28478439), (3, 9492813), (9, 3164271), (11, 2588949), (23, 1238193), (27, 1054757), (33, 862983), (69, 412731), (99, 287661), (121, 235359), (207, 137577), (253, 112563), (297, 95887), (363, 78453), (379, 75141), (621, 45859), (759, 37521), (1089, 26151), (1137, 25047), (2277, 12507), (2783, 10233), (3267, 8717), (3411, 8349), (4169, 6831)]