217414407

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{240769}}^1$

素因数の和:240822

約数の個数: 16

約数和(自身を含む): 339004160

約数和(自身を除く): 121589753

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 240769, 722307, 1685383, 5056149, 10353067, 31059201, 72471469, 217414407]

約数ペア:

[(1, 217414407), (3, 72471469), (7, 31059201), (21, 10353067), (43, 5056149), (129, 1685383), (301, 722307), (903, 240769)]