21198256

素因数分解:

$2^4\times {\mathrm{277}}^1\times {\mathrm{4783}}^1$

素因数の和:5068

約数の個数: 20

約数和(自身を含む): 41228512

約数和(自身を除く): 20030256

約数列:

[1, 2, 4, 8, 16, 277, 554, 1108, 2216, 4432, 4783, 9566, 19132, 38264, 76528, 1324891, 2649782, 5299564, 10599128, 21198256]

約数ペア:

[(1, 21198256), (2, 10599128), (4, 5299564), (8, 2649782), (16, 1324891), (277, 76528), (554, 38264), (1108, 19132), (2216, 9566), (4432, 4783)]