21742040

素因数分解:

$2^3\times 5^1\times {\mathrm{543551}}^1$

素因数の和:543562

約数の個数: 16

約数和(自身を含む): 48919680

約数和(自身を除く): 27177640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 543551, 1087102, 2174204, 2717755, 4348408, 5435510, 10871020, 21742040]

約数ペア:

[(1, 21742040), (2, 10871020), (4, 5435510), (5, 4348408), (8, 2717755), (10, 2174204), (20, 1087102), (40, 543551)]