19859930

素因数分解:

$2^1\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2239}}^1$

素因数の和:3133

約数の個数: 16

約数和(自身を含む): 35804160

約数和(自身を除く): 15944230

約数列:

[1, 2, 5, 10, 887, 1774, 2239, 4435, 4478, 8870, 11195, 22390, 1985993, 3971986, 9929965, 19859930]

約数ペア:

[(1, 19859930), (2, 9929965), (5, 3971986), (10, 1985993), (887, 22390), (1774, 11195), (2239, 8870), (4435, 4478)]