20823187

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{5519}}^1$

素因数の和:5551

約数の個数: 16

約数和(自身を含む): 26496000

約数和(自身を除く): 5672813

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 5519, 38633, 60709, 270431, 424963, 1893017, 2974741, 20823187]

約数ペア:

[(1, 20823187), (7, 2974741), (11, 1893017), (49, 424963), (77, 270431), (343, 60709), (539, 38633), (3773, 5519)]