18958012

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{110221}}^1$

素因数の和:110268

約数の個数: 12

約数和(自身を含む): 33948376

約数和(自身を除く): 14990364

約数列:

[1, 2, 4, 43, 86, 172, 110221, 220442, 440884, 4739503, 9479006, 18958012]

約数ペア:

[(1, 18958012), (2, 9479006), (4, 4739503), (43, 440884), (86, 220442), (172, 110221)]