21740144

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:593

約数の個数: 40

約数和(自身を含む): 44916768

約数和(自身を除く): 23176624

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 257, 272, 311, 514, 622, 1028, 1244, 2056, 2488, 4112, 4369, 4976, 5287, 8738, 10574, 17476, 21148, 34952, 42296, 69904, 79927, 84592, 159854, 319708, 639416, 1278832, 1358759, 2717518, 5435036, 10870072, 21740144]

約数ペア:

[(1, 21740144), (2, 10870072), (4, 5435036), (8, 2717518), (16, 1358759), (17, 1278832), (34, 639416), (68, 319708), (136, 159854), (257, 84592), (272, 79927), (311, 69904), (514, 42296), (622, 34952), (1028, 21148), (1244, 17476), (2056, 10574), (2488, 8738), (4112, 5287), (4369, 4976)]