208840272309

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{212885089}}^1$

素因数の和:212885204

約数の個数: 12

約数和(自身を含む): 304425678700

約数和(自身を除く): 95585406391

約数列:

[1, 3, 9, 109, 327, 981, 212885089, 638655267, 1915965801, 23204474701, 69613424103, 208840272309]

約数ペア:

[(1, 208840272309), (3, 69613424103), (9, 23204474701), (109, 1915965801), (327, 638655267), (981, 212885089)]