19237743

素因数分解:

$3^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 60

約数和(自身を含む): 34595352

約数和(自身を除く): 15357609

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 81, 111, 131, 147, 189, 259, 333, 393, 441, 567, 777, 917, 999, 1179, 1323, 1813, 2331, 2751, 2997, 3537, 3969, 4847, 5439, 6419, 6993, 8253, 10611, 14541, 16317, 19257, 20979, 24759, 33929, 43623, 48951, 57771, 74277, 101787, 130869, 146853, 173313, 237503, 305361, 392607, 519939, 712509, 916083, 2137527, 2748249, 6412581, 19237743]

約数ペア:

[(1, 19237743), (3, 6412581), (7, 2748249), (9, 2137527), (21, 916083), (27, 712509), (37, 519939), (49, 392607), (63, 305361), (81, 237503), (111, 173313), (131, 146853), (147, 130869), (189, 101787), (259, 74277), (333, 57771), (393, 48951), (441, 43623), (567, 33929), (777, 24759), (917, 20979), (999, 19257), (1179, 16317), (1323, 14541), (1813, 10611), (2331, 8253), (2751, 6993), (2997, 6419), (3537, 5439), (3969, 4847)]