21176390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124567}}^1$

素因数の和:124591

約数の個数: 16

約数和(自身を含む): 40360032

約数和(自身を除く): 19183642

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124567, 249134, 622835, 1245670, 2117639, 4235278, 10588195, 21176390]

約数ペア:

[(1, 21176390), (2, 10588195), (5, 4235278), (10, 2117639), (17, 1245670), (34, 622835), (85, 249134), (170, 124567)]