21840709

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3371}}^1$

素因数の和:3432

約数の個数: 16

約数和(自身を含む): 25896960

約数和(自身を除く): 4056251

約数列:

[1, 11, 19, 31, 209, 341, 589, 3371, 6479, 37081, 64049, 104501, 704539, 1149511, 1985519, 21840709]

約数ペア:

[(1, 21840709), (11, 1985519), (19, 1149511), (31, 704539), (209, 104501), (341, 64049), (589, 37081), (3371, 6479)]