20340388

素因数分解:

$2^2\times {\mathrm{409}}^1\times {\mathrm{12433}}^1$

素因数の和:12846

約数の個数: 12

約数和(自身を含む): 35685580

約数和(自身を除く): 15345192

約数列:

[1, 2, 4, 409, 818, 1636, 12433, 24866, 49732, 5085097, 10170194, 20340388]

約数ペア:

[(1, 20340388), (2, 10170194), (4, 5085097), (409, 49732), (818, 24866), (1636, 12433)]