289207791

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{111191}}^1$

素因数の和:111231

約数の個数: 18

約数和(自身を含む): 443767272

約数和(自身を除く): 154559481

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 111191, 333573, 1000719, 1890247, 5670741, 17012223, 32134199, 96402597, 289207791]

約数ペア:

[(1, 289207791), (3, 96402597), (9, 32134199), (17, 17012223), (51, 5670741), (153, 1890247), (289, 1000719), (867, 333573), (2601, 111191)]