208446721

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1\times {\mathrm{1117}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 243419904

約数和(自身を除く): 34973183

約数列:

[1, 7, 53, 371, 503, 1117, 3521, 7819, 26659, 59201, 186613, 414407, 561851, 3932957, 29778103, 208446721]

約数ペア:

[(1, 208446721), (7, 29778103), (53, 3932957), (371, 561851), (503, 414407), (1117, 186613), (3521, 59201), (7819, 26659)]