21858448

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31771}}^1$

素因数の和:31822

約数の個数: 20

約数和(自身を含む): 43337008

約数和(自身を除く): 21478560

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31771, 63542, 127084, 254168, 508336, 1366153, 2732306, 5464612, 10929224, 21858448]

約数ペア:

[(1, 21858448), (2, 10929224), (4, 5464612), (8, 2732306), (16, 1366153), (43, 508336), (86, 254168), (172, 127084), (344, 63542), (688, 31771)]