217599837

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 385529760

約数和(自身を除く): 167929923

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 169, 247, 273, 399, 461, 507, 637, 741, 931, 1183, 1383, 1729, 1911, 2793, 3211, 3227, 3549, 5187, 5993, 8281, 8759, 9633, 9681, 12103, 17979, 22477, 22589, 24843, 26277, 36309, 41951, 61313, 67431, 67767, 77909, 113867, 125853, 157339, 183939, 233727, 293657, 341601, 429191, 472017, 545363, 797069, 880971, 1287573, 1480271, 1636089, 2391207, 3817541, 4440813, 5579483, 10361897, 11452623, 16738449, 31085691, 72533279, 217599837]

約数ペア:

[(1, 217599837), (3, 72533279), (7, 31085691), (13, 16738449), (19, 11452623), (21, 10361897), (39, 5579483), (49, 4440813), (57, 3817541), (91, 2391207), (133, 1636089), (147, 1480271), (169, 1287573), (247, 880971), (273, 797069), (399, 545363), (461, 472017), (507, 429191), (637, 341601), (741, 293657), (931, 233727), (1183, 183939), (1383, 157339), (1729, 125853), (1911, 113867), (2793, 77909), (3211, 67767), (3227, 67431), (3549, 61313), (5187, 41951), (5993, 36309), (8281, 26277), (8759, 24843), (9633, 22589), (9681, 22477), (12103, 17979)]