18117189

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:311

約数の個数: 40

約数和(自身を含む): 29272320

約数和(自身を除く): 11155131

約数列:

[1, 3, 9, 17, 27, 51, 59, 81, 153, 177, 223, 459, 531, 669, 1003, 1377, 1593, 2007, 3009, 3791, 4779, 6021, 9027, 11373, 13157, 18063, 27081, 34119, 39471, 81243, 102357, 118413, 223669, 307071, 355239, 671007, 1065717, 2013021, 6039063, 18117189]

約数ペア:

[(1, 18117189), (3, 6039063), (9, 2013021), (17, 1065717), (27, 671007), (51, 355239), (59, 307071), (81, 223669), (153, 118413), (177, 102357), (223, 81243), (459, 39471), (531, 34119), (669, 27081), (1003, 18063), (1377, 13157), (1593, 11373), (2007, 9027), (3009, 6021), (3791, 4779)]