18480368

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{26861}}^1$

素因数の和:26912

約数の個数: 20

約数和(自身を含む): 36639768

約数和(自身を除く): 18159400

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 26861, 53722, 107444, 214888, 429776, 1155023, 2310046, 4620092, 9240184, 18480368]

約数ペア:

[(1, 18480368), (2, 9240184), (4, 4620092), (8, 2310046), (16, 1155023), (43, 429776), (86, 214888), (172, 107444), (344, 53722), (688, 26861)]