208567815

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{817913}}^1$

素因数の和:817938

約数の個数: 16

約数和(自身を含む): 353338848

約数和(自身を除く): 144771033

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 817913, 2453739, 4089565, 12268695, 13904521, 41713563, 69522605, 208567815]

約数ペア:

[(1, 208567815), (3, 69522605), (5, 41713563), (15, 13904521), (17, 12268695), (51, 4089565), (85, 2453739), (255, 817913)]