129891242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{20903}}^1$

素因数の和:21157

約数の個数: 16

約数和(自身を含む): 210712320

約数和(自身を除く): 80821078

約数列:

[1, 2, 13, 26, 239, 478, 3107, 6214, 20903, 41806, 271739, 543478, 4995817, 9991634, 64945621, 129891242]

約数ペア:

[(1, 129891242), (2, 64945621), (13, 9991634), (26, 4995817), (239, 543478), (478, 271739), (3107, 41806), (6214, 20903)]