128949863

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{661}}^1$

素因数の和:759

約数の個数: 24

約数和(自身を含む): 157767840

約数和(自身を除く): 28817977

約数列:

[1, 7, 29, 31, 203, 217, 661, 899, 961, 4627, 6293, 6727, 19169, 20491, 27869, 134183, 143437, 195083, 594239, 635221, 4159673, 4446547, 18421409, 128949863]

約数ペア:

[(1, 128949863), (7, 18421409), (29, 4446547), (31, 4159673), (203, 635221), (217, 594239), (661, 195083), (899, 143437), (961, 134183), (4627, 27869), (6293, 20491), (6727, 19169)]