20408109

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21061}}^1$

素因数の和:21100

約数の個数: 16

約数和(自身を含む): 30329280

約数和(自身を除く): 9921171

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21061, 63183, 358037, 400159, 1074111, 1200477, 6802703, 20408109]

約数ペア:

[(1, 20408109), (3, 6802703), (17, 1200477), (19, 1074111), (51, 400159), (57, 358037), (323, 63183), (969, 21061)]