18639554

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{1123}}^1$

素因数の和:1361

約数の個数: 16

約数和(自身を含む): 28783392

約数和(自身を除く): 10143838

約数列:

[1, 2, 43, 86, 193, 386, 1123, 2246, 8299, 16598, 48289, 96578, 216739, 433478, 9319777, 18639554]

約数ペア:

[(1, 18639554), (2, 9319777), (43, 433478), (86, 216739), (193, 96578), (386, 48289), (1123, 16598), (2246, 8299)]