18864657

素因数分解:

$3^4\times 7^4\times {\mathrm{97}}^1$

素因数の和:137

約数の個数: 50

約数和(自身を含む): 33214258

約数和(自身を除く): 14349601

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 97, 147, 189, 291, 343, 441, 567, 679, 873, 1029, 1323, 2037, 2401, 2619, 3087, 3969, 4753, 6111, 7203, 7857, 9261, 14259, 18333, 21609, 27783, 33271, 42777, 54999, 64827, 99813, 128331, 194481, 232897, 299439, 384993, 698691, 898317, 2096073, 2694951, 6288219, 18864657]

約数ペア:

[(1, 18864657), (3, 6288219), (7, 2694951), (9, 2096073), (21, 898317), (27, 698691), (49, 384993), (63, 299439), (81, 232897), (97, 194481), (147, 128331), (189, 99813), (291, 64827), (343, 54999), (441, 42777), (567, 33271), (679, 27783), (873, 21609), (1029, 18333), (1323, 14259), (2037, 9261), (2401, 7857), (2619, 7203), (3087, 6111), (3969, 4753)]