21000643256

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49529819}}^1$

素因数の和:49529878

約数の個数: 16

約数和(自身を含む): 40119154200

約数和(自身を除く): 19118510944

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49529819, 99059638, 198119276, 396238552, 2625080407, 5250160814, 10500321628, 21000643256]

約数ペア:

[(1, 21000643256), (2, 10500321628), (4, 5250160814), (8, 2625080407), (53, 396238552), (106, 198119276), (212, 99059638), (424, 49529819)]