20993481

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{18367}}^1$

素因数の和:18500

約数の個数: 12

約数和(自身を含む): 30564352

約数和(自身を除く): 9570871

約数列:

[1, 3, 9, 127, 381, 1143, 18367, 55101, 165303, 2332609, 6997827, 20993481]

約数ペア:

[(1, 20993481), (3, 6997827), (9, 2332609), (127, 165303), (381, 55101), (1143, 18367)]