128425857

素因数分解:

$3^1\times 7^1\times {\mathrm{1901}}^1\times {\mathrm{3217}}^1$

素因数の和:5128

約数の個数: 16

約数和(自身を含む): 195860352

約数和(自身を除く): 67434495

約数列:

[1, 3, 7, 21, 1901, 3217, 5703, 9651, 13307, 22519, 39921, 67557, 6115517, 18346551, 42808619, 128425857]

約数ペア:

[(1, 128425857), (3, 42808619), (7, 18346551), (21, 6115517), (1901, 67557), (3217, 39921), (5703, 22519), (9651, 13307)]