20983527

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{919}}^1$

素因数の和:1027

約数の個数: 24

約数和(自身を含む): 31574400

約数和(自身を除く): 10590873

約数列:

[1, 3, 9, 43, 59, 129, 177, 387, 531, 919, 2537, 2757, 7611, 8271, 22833, 39517, 54221, 118551, 162663, 355653, 487989, 2331503, 6994509, 20983527]

約数ペア:

[(1, 20983527), (3, 6994509), (9, 2331503), (43, 487989), (59, 355653), (129, 162663), (177, 118551), (387, 54221), (531, 39517), (919, 22833), (2537, 8271), (2757, 7611)]