21143144

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240263}}^1$

素因数の和:240280

約数の個数: 16

約数和(自身を含む): 43247520

約数和(自身を除く): 22104376

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240263, 480526, 961052, 1922104, 2642893, 5285786, 10571572, 21143144]

約数ペア:

[(1, 21143144), (2, 10571572), (4, 5285786), (8, 2642893), (11, 1922104), (22, 961052), (44, 480526), (88, 240263)]