128542526

素因数分解:

$2^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{27739}}^1$

素因数の和:28079

約数の個数: 16

約数和(自身を含む): 221032320

約数和(自身を除く): 92489794

約数列:

[1, 2, 7, 14, 331, 662, 2317, 4634, 27739, 55478, 194173, 388346, 9181609, 18363218, 64271263, 128542526]

約数ペア:

[(1, 128542526), (2, 64271263), (7, 18363218), (14, 9181609), (331, 388346), (662, 194173), (2317, 55478), (4634, 27739)]