21880279130

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{20448859}}^1$

素因数の和:20448973

約数の個数: 16

約数和(自身を含む): 39752583840

約数和(自身を除く): 17872304710

約数列:

[1, 2, 5, 10, 107, 214, 535, 1070, 20448859, 40897718, 102244295, 204488590, 2188027913, 4376055826, 10940139565, 21880279130]

約数ペア:

[(1, 21880279130), (2, 10940139565), (5, 4376055826), (10, 2188027913), (107, 204488590), (214, 102244295), (535, 40897718), (1070, 20448859)]