19409770

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{45139}}^1$

素因数の和:45189

約数の個数: 16

約数和(自身を含む): 35750880

約数和(自身を除く): 16341110

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 45139, 90278, 225695, 451390, 1940977, 3881954, 9704885, 19409770]

約数ペア:

[(1, 19409770), (2, 9704885), (5, 3881954), (10, 1940977), (43, 451390), (86, 225695), (215, 90278), (430, 45139)]