209955843

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{440159}}^1$

素因数の和:440218

約数の個数: 12

約数和(自身を含む): 308992320

約数和(自身を除く): 99036477

約数列:

[1, 3, 9, 53, 159, 477, 440159, 1320477, 3961431, 23328427, 69985281, 209955843]

約数ペア:

[(1, 209955843), (3, 69985281), (9, 23328427), (53, 3961431), (159, 1320477), (477, 440159)]