208889371377

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{80311177}}^1$

素因数の和:80311217

約数の個数: 18

約数和(自身を含む): 320521911398

約数和(自身を除く): 111632540021

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 80311177, 240933531, 722800593, 1365290009, 4095870027, 12287610081, 23209930153, 69629790459, 208889371377]

約数ペア:

[(1, 208889371377), (3, 69629790459), (9, 23209930153), (17, 12287610081), (51, 4095870027), (153, 1365290009), (289, 722800593), (867, 240933531), (2601, 80311177)]