21699208

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159553}}^1$

素因数の和:159576

約数の個数: 16

約数和(自身を含む): 43079580

約数和(自身を除く): 21380372

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159553, 319106, 638212, 1276424, 2712401, 5424802, 10849604, 21699208]

約数ペア:

[(1, 21699208), (2, 10849604), (4, 5424802), (8, 2712401), (17, 1276424), (34, 638212), (68, 319106), (136, 159553)]