16193961

素因数分解:

$3^2\times 7^2\times {\mathrm{36721}}^1$

素因数の和:36741

約数の個数: 18

約数和(自身を含む): 27211002

約数和(自身を除く): 11017041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 36721, 110163, 257047, 330489, 771141, 1799329, 2313423, 5397987, 16193961]

約数ペア:

[(1, 16193961), (3, 5397987), (7, 2313423), (9, 1799329), (21, 771141), (49, 330489), (63, 257047), (147, 110163), (441, 36721)]