18921616

素因数分解:

$2^4\times 7^1\times {\mathrm{168943}}^1$

素因数の和:168958

約数の個数: 20

約数和(自身を含む): 41898112

約数和(自身を除く): 22976496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 168943, 337886, 675772, 1182601, 1351544, 2365202, 2703088, 4730404, 9460808, 18921616]

約数ペア:

[(1, 18921616), (2, 9460808), (4, 4730404), (7, 2703088), (8, 2365202), (14, 1351544), (16, 1182601), (28, 675772), (56, 337886), (112, 168943)]