21867568

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10433}}^1$

素因数の和:10572

約数の個数: 20

約数和(自身を含む): 42695928

約数和(自身を除く): 20828360

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10433, 20866, 41732, 83464, 166928, 1366723, 2733446, 5466892, 10933784, 21867568]

約数ペア:

[(1, 21867568), (2, 10933784), (4, 5466892), (8, 2733446), (16, 1366723), (131, 166928), (262, 83464), (524, 41732), (1048, 20866), (2096, 10433)]