25581087

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 46949760

約数和(自身を除く): 21368673

約数列:

[1, 3, 7, 9, 19, 21, 43, 49, 57, 63, 71, 129, 133, 147, 171, 213, 301, 387, 399, 441, 497, 639, 817, 903, 931, 1197, 1349, 1491, 2107, 2451, 2709, 2793, 3053, 3479, 4047, 4473, 5719, 6321, 7353, 8379, 9159, 9443, 10437, 12141, 17157, 18963, 21371, 27477, 28329, 31311, 40033, 51471, 58007, 64113, 66101, 84987, 120099, 149597, 174021, 192339, 198303, 360297, 406049, 448791, 522063, 594909, 1218147, 1346373, 2842343, 3654441, 8527029, 25581087]

約数ペア:

[(1, 25581087), (3, 8527029), (7, 3654441), (9, 2842343), (19, 1346373), (21, 1218147), (43, 594909), (49, 522063), (57, 448791), (63, 406049), (71, 360297), (129, 198303), (133, 192339), (147, 174021), (171, 149597), (213, 120099), (301, 84987), (387, 66101), (399, 64113), (441, 58007), (497, 51471), (639, 40033), (817, 31311), (903, 28329), (931, 27477), (1197, 21371), (1349, 18963), (1491, 17157), (2107, 12141), (2451, 10437), (2709, 9443), (2793, 9159), (3053, 8379), (3479, 7353), (4047, 6321), (4473, 5719)]