18789813

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1119

約数の個数: 40

約数和(自身を含む): 33144320

約数和(自身を除く): 14354507

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 1069, 1953, 2511, 3207, 5859, 7483, 9621, 17577, 22449, 28863, 33139, 67347, 86589, 99417, 202041, 231973, 298251, 606123, 695919, 894753, 2087757, 2684259, 6263271, 18789813]

約数ペア:

[(1, 18789813), (3, 6263271), (7, 2684259), (9, 2087757), (21, 894753), (27, 695919), (31, 606123), (63, 298251), (81, 231973), (93, 202041), (189, 99417), (217, 86589), (279, 67347), (567, 33139), (651, 28863), (837, 22449), (1069, 17577), (1953, 9621), (2511, 7483), (3207, 5859)]