20807717

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1549}}^1$

素因数の和:1676

約数の個数: 16

約数和(自身を含む): 25296000

約数和(自身を除く): 4488283

約数列:

[1, 7, 19, 101, 133, 707, 1549, 1919, 10843, 13433, 29431, 156449, 206017, 1095143, 2972531, 20807717]

約数ペア:

[(1, 20807717), (7, 2972531), (19, 1095143), (101, 206017), (133, 156449), (707, 29431), (1549, 13433), (1919, 10843)]