18539829

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 34504704

約数和(自身を除く): 15964875

約数列:

[1, 3, 7, 9, 11, 21, 31, 33, 63, 77, 93, 99, 217, 231, 279, 341, 651, 693, 863, 1023, 1953, 2387, 2589, 3069, 6041, 7161, 7767, 9493, 18123, 21483, 26753, 28479, 54369, 66451, 80259, 85437, 187271, 199353, 240777, 294283, 561813, 598059, 882849, 1685439, 2059981, 2648547, 6179943, 18539829]

約数ペア:

[(1, 18539829), (3, 6179943), (7, 2648547), (9, 2059981), (11, 1685439), (21, 882849), (31, 598059), (33, 561813), (63, 294283), (77, 240777), (93, 199353), (99, 187271), (217, 85437), (231, 80259), (279, 66451), (341, 54369), (651, 28479), (693, 26753), (863, 21483), (1023, 18123), (1953, 9493), (2387, 7767), (2589, 7161), (3069, 6041)]