18689727

素因数分解:

$3^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 29836800

約数和(自身を除く): 11147073

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 343, 443, 861, 1029, 1329, 2009, 3101, 6027, 9303, 14063, 18163, 21707, 42189, 54489, 65121, 127141, 151949, 381423, 455847, 889987, 2669961, 6229909, 18689727]

約数ペア:

[(1, 18689727), (3, 6229909), (7, 2669961), (21, 889987), (41, 455847), (49, 381423), (123, 151949), (147, 127141), (287, 65121), (343, 54489), (443, 42189), (861, 21707), (1029, 18163), (1329, 14063), (2009, 9303), (3101, 6027)]