21495928

素因数分解:

$2^3\times {\mathrm{647}}^1\times {\mathrm{4153}}^1$

素因数の和:4806

約数の個数: 16

約数和(自身を含む): 40376880

約数和(自身を除く): 18880952

約数列:

[1, 2, 4, 8, 647, 1294, 2588, 4153, 5176, 8306, 16612, 33224, 2686991, 5373982, 10747964, 21495928]

約数ペア:

[(1, 21495928), (2, 10747964), (4, 5373982), (8, 2686991), (647, 33224), (1294, 16612), (2588, 8306), (4153, 5176)]