209401717

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1\times {\mathrm{1279}}^1$

素因数の和:2536

約数の個数: 16

約数和(自身を含む): 252313600

約数和(自身を除く): 42911883

約数列:

[1, 7, 19, 133, 1231, 1279, 8617, 8953, 23389, 24301, 163723, 170107, 1574449, 11021143, 29914531, 209401717]

約数ペア:

[(1, 209401717), (7, 29914531), (19, 11021143), (133, 1574449), (1231, 170107), (1279, 163723), (8617, 24301), (8953, 23389)]