28161322

素因数分解:

$2^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{3109}}^1$

素因数の和:3765

約数の個数: 16

約数和(自身を含む): 48366720

約数和(自身を除く): 20205398

約数列:

[1, 2, 7, 14, 647, 1294, 3109, 4529, 6218, 9058, 21763, 43526, 2011523, 4023046, 14080661, 28161322]

約数ペア:

[(1, 28161322), (2, 14080661), (7, 4023046), (14, 2011523), (647, 43526), (1294, 21763), (3109, 9058), (4529, 6218)]