15835911

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 28385280

約数和(自身を除く): 12549369

約数列:

[1, 3, 7, 13, 19, 21, 39, 43, 57, 71, 91, 129, 133, 213, 247, 273, 301, 399, 497, 559, 741, 817, 903, 923, 1349, 1491, 1677, 1729, 2451, 2769, 3053, 3913, 4047, 5187, 5719, 6461, 9159, 9443, 10621, 11739, 17157, 17537, 19383, 21371, 28329, 31863, 39689, 52611, 58007, 64113, 74347, 119067, 122759, 174021, 223041, 277823, 368277, 406049, 754091, 833469, 1218147, 2262273, 5278637, 15835911]

約数ペア:

[(1, 15835911), (3, 5278637), (7, 2262273), (13, 1218147), (19, 833469), (21, 754091), (39, 406049), (43, 368277), (57, 277823), (71, 223041), (91, 174021), (129, 122759), (133, 119067), (213, 74347), (247, 64113), (273, 58007), (301, 52611), (399, 39689), (497, 31863), (559, 28329), (741, 21371), (817, 19383), (903, 17537), (923, 17157), (1349, 11739), (1491, 10621), (1677, 9443), (1729, 9159), (2451, 6461), (2769, 5719), (3053, 5187), (3913, 4047)]