16808225

素因数分解:

$5^2\times 7^2\times {\mathrm{13721}}^1$

素因数の和:13745

約数の個数: 18

約数和(自身を含む): 24246774

約数和(自身を除く): 7438549

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 13721, 68605, 96047, 343025, 480235, 672329, 2401175, 3361645, 16808225]

約数ペア:

[(1, 16808225), (5, 3361645), (7, 2401175), (25, 672329), (35, 480235), (49, 343025), (175, 96047), (245, 68605), (1225, 13721)]