20861449

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1553}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 25361280

約数和(自身を除く): 4499831

約数列:

[1, 7, 19, 101, 133, 707, 1553, 1919, 10871, 13433, 29507, 156853, 206549, 1097971, 2980207, 20861449]

約数ペア:

[(1, 20861449), (7, 2980207), (19, 1097971), (101, 206549), (133, 156853), (707, 29507), (1553, 13433), (1919, 10871)]