21804728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{247781}}^1$

素因数の和:247798

約数の個数: 16

約数和(自身を含む): 44600760

約数和(自身を除く): 22796032

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 247781, 495562, 991124, 1982248, 2725591, 5451182, 10902364, 21804728]

約数ペア:

[(1, 21804728), (2, 10902364), (4, 5451182), (8, 2725591), (11, 1982248), (22, 991124), (44, 495562), (88, 247781)]