18728878

素因数分解:

$2^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{857}}^1$

素因数の和:1096

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 14135954

約数列:

[1, 2, 7, 14, 49, 98, 223, 446, 857, 1561, 1714, 3122, 5999, 10927, 11998, 21854, 41993, 83986, 191111, 382222, 1337777, 2675554, 9364439, 18728878]

約数ペア:

[(1, 18728878), (2, 9364439), (7, 2675554), (14, 1337777), (49, 382222), (98, 191111), (223, 83986), (446, 41993), (857, 21854), (1561, 11998), (1714, 10927), (3122, 5999)]