25992981

素因数分解:

$3^5\times 7^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 47305440

約数和(自身を除く): 21312459

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 59, 63, 81, 111, 147, 177, 189, 243, 259, 333, 413, 441, 531, 567, 777, 999, 1239, 1323, 1593, 1701, 1813, 2183, 2331, 2891, 2997, 3717, 3969, 4779, 5439, 6549, 6993, 8673, 8991, 11151, 11907, 14337, 15281, 16317, 19647, 20979, 26019, 33453, 45843, 48951, 58941, 62937, 78057, 100359, 106967, 137529, 146853, 176823, 234171, 320901, 412587, 440559, 530469, 702513, 962703, 1237761, 2888109, 3713283, 8664327, 25992981]

約数ペア:

[(1, 25992981), (3, 8664327), (7, 3713283), (9, 2888109), (21, 1237761), (27, 962703), (37, 702513), (49, 530469), (59, 440559), (63, 412587), (81, 320901), (111, 234171), (147, 176823), (177, 146853), (189, 137529), (243, 106967), (259, 100359), (333, 78057), (413, 62937), (441, 58941), (531, 48951), (567, 45843), (777, 33453), (999, 26019), (1239, 20979), (1323, 19647), (1593, 16317), (1701, 15281), (1813, 14337), (2183, 11907), (2331, 11151), (2891, 8991), (2997, 8673), (3717, 6993), (3969, 6549), (4779, 5439)]