18804176

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:551

約数の個数: 40

約数和(自身を含む): 38870280

約数和(自身を除く): 20066104

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 257, 269, 272, 514, 538, 1028, 1076, 2056, 2152, 4112, 4304, 4369, 4573, 8738, 9146, 17476, 18292, 34952, 36584, 69133, 69904, 73168, 138266, 276532, 553064, 1106128, 1175261, 2350522, 4701044, 9402088, 18804176]

約数ペア:

[(1, 18804176), (2, 9402088), (4, 4701044), (8, 2350522), (16, 1175261), (17, 1106128), (34, 553064), (68, 276532), (136, 138266), (257, 73168), (269, 69904), (272, 69133), (514, 36584), (538, 34952), (1028, 18292), (1076, 17476), (2056, 9146), (2152, 8738), (4112, 4573), (4304, 4369)]