7501221

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 64

約数和(自身を含む): 14192640

約数和(自身を除く): 6691419

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 43, 63, 71, 91, 117, 129, 189, 213, 273, 301, 351, 387, 497, 559, 639, 819, 903, 923, 1161, 1491, 1677, 1917, 2457, 2709, 2769, 3053, 3913, 4473, 5031, 6461, 8127, 8307, 9159, 11739, 13419, 15093, 19383, 21371, 24921, 27477, 35217, 39689, 58149, 64113, 82431, 105651, 119067, 174447, 192339, 277823, 357201, 577017, 833469, 1071603, 2500407, 7501221]

約数ペア:

[(1, 7501221), (3, 2500407), (7, 1071603), (9, 833469), (13, 577017), (21, 357201), (27, 277823), (39, 192339), (43, 174447), (63, 119067), (71, 105651), (91, 82431), (117, 64113), (129, 58149), (189, 39689), (213, 35217), (273, 27477), (301, 24921), (351, 21371), (387, 19383), (497, 15093), (559, 13419), (639, 11739), (819, 9159), (903, 8307), (923, 8127), (1161, 6461), (1491, 5031), (1677, 4473), (1917, 3913), (2457, 3053), (2709, 2769)]