19209939

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6581}}^1$

素因数の和:6730

約数の個数: 16

約数和(自身を含む): 29487360

約数和(自身を除く): 10277421

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6581, 19743, 46067, 138201, 914759, 2744277, 6403313, 19209939]

約数ペア:

[(1, 19209939), (3, 6403313), (7, 2744277), (21, 914759), (139, 138201), (417, 46067), (973, 19743), (2919, 6581)]