18975212

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{110321}}^1$

素因数の和:110368

約数の個数: 12

約数和(自身を含む): 33979176

約数和(自身を除く): 15003964

約数列:

[1, 2, 4, 43, 86, 172, 110321, 220642, 441284, 4743803, 9487606, 18975212]

約数ペア:

[(1, 18975212), (2, 9487606), (4, 4743803), (43, 441284), (86, 220642), (172, 110321)]