20004291

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7691}}^1$

素因数の和:7731

約数の個数: 18

約数和(自身を含む): 30698772

約数和(自身を除く): 10694481

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7691, 23073, 69219, 130747, 392241, 1176723, 2222699, 6668097, 20004291]

約数ペア:

[(1, 20004291), (3, 6668097), (9, 2222699), (17, 1176723), (51, 392241), (153, 130747), (289, 69219), (867, 23073), (2601, 7691)]