2500407

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 4612608

約数和(自身を除く): 2112201

約数列:

[1, 3, 7, 9, 13, 21, 39, 43, 63, 71, 91, 117, 129, 213, 273, 301, 387, 497, 559, 639, 819, 903, 923, 1491, 1677, 2709, 2769, 3053, 3913, 4473, 5031, 6461, 8307, 9159, 11739, 19383, 21371, 27477, 35217, 39689, 58149, 64113, 119067, 192339, 277823, 357201, 833469, 2500407]

約数ペア:

[(1, 2500407), (3, 833469), (7, 357201), (9, 277823), (13, 192339), (21, 119067), (39, 64113), (43, 58149), (63, 39689), (71, 35217), (91, 27477), (117, 21371), (129, 19383), (213, 11739), (273, 9159), (301, 8307), (387, 6461), (497, 5031), (559, 4473), (639, 3913), (819, 3053), (903, 2769), (923, 2709), (1491, 1677)]