128347261

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{23537}}^1$

素因数の和:23604

約数の個数: 16

約数和(自身を含む): 158175360

約数和(自身を除く): 29828099

約数列:

[1, 7, 19, 41, 133, 287, 779, 5453, 23537, 164759, 447203, 965017, 3130421, 6755119, 18335323, 128347261]

約数ペア:

[(1, 128347261), (7, 18335323), (19, 6755119), (41, 3130421), (133, 965017), (287, 447203), (779, 164759), (5453, 23537)]