21084291

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{57139}}^1$

素因数の和:57186

約数の個数: 12

約数和(自身を含む): 31198440

約数和(自身を除く): 10114149

約数列:

[1, 3, 9, 41, 123, 369, 57139, 171417, 514251, 2342699, 7028097, 21084291]

約数ペア:

[(1, 21084291), (3, 7028097), (9, 2342699), (41, 514251), (123, 171417), (369, 57139)]