28420119

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 24802281

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 43, 63, 91, 117, 129, 189, 269, 273, 301, 351, 387, 559, 807, 819, 903, 1161, 1677, 1883, 2421, 2457, 2709, 3497, 3913, 5031, 5649, 7263, 8127, 10491, 11567, 11739, 15093, 16947, 24479, 31473, 34701, 35217, 50841, 73437, 80969, 94419, 104103, 105651, 150371, 220311, 242907, 312309, 451113, 660933, 728721, 1052597, 1353339, 2186163, 3157791, 4060017, 9473373, 28420119]

約数ペア:

[(1, 28420119), (3, 9473373), (7, 4060017), (9, 3157791), (13, 2186163), (21, 1353339), (27, 1052597), (39, 728721), (43, 660933), (63, 451113), (91, 312309), (117, 242907), (129, 220311), (189, 150371), (269, 105651), (273, 104103), (301, 94419), (351, 80969), (387, 73437), (559, 50841), (807, 35217), (819, 34701), (903, 31473), (1161, 24479), (1677, 16947), (1883, 15093), (2421, 11739), (2457, 11567), (2709, 10491), (3497, 8127), (3913, 7263), (5031, 5649)]