19965869

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1303}}^1$

素因数の和:1520

約数の個数: 16

約数和(自身を含む): 25036800

約数和(自身を除く): 5070931

約数列:

[1, 7, 11, 77, 199, 1303, 1393, 2189, 9121, 14333, 15323, 100331, 259297, 1815079, 2852267, 19965869]

約数ペア:

[(1, 19965869), (7, 2852267), (11, 1815079), (77, 259297), (199, 100331), (1303, 15323), (1393, 14333), (2189, 9121)]