21744880

素因数分解:

$2^4\times 5^1\times {\mathrm{271811}}^1$

素因数の和:271824

約数の個数: 20

約数和(自身を含む): 50557032

約数和(自身を除く): 28812152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271811, 543622, 1087244, 1359055, 2174488, 2718110, 4348976, 5436220, 10872440, 21744880]

約数ペア:

[(1, 21744880), (2, 10872440), (4, 5436220), (5, 4348976), (8, 2718110), (10, 2174488), (16, 1359055), (20, 1087244), (40, 543622), (80, 271811)]