21782728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{247531}}^1$

素因数の和:247548

約数の個数: 16

約数和(自身を含む): 44555760

約数和(自身を除く): 22773032

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 247531, 495062, 990124, 1980248, 2722841, 5445682, 10891364, 21782728]

約数ペア:

[(1, 21782728), (2, 10891364), (4, 5445682), (8, 2722841), (11, 1980248), (22, 990124), (44, 495062), (88, 247531)]