178308507

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{68239}}^1$

素因数の和:68322

約数の個数: 16

約数和(自身を含む): 259857920

約数和(自身を除く): 81549413

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 68239, 204717, 887107, 2661321, 4572013, 13716039, 59436169, 178308507]

約数ペア:

[(1, 178308507), (3, 59436169), (13, 13716039), (39, 4572013), (67, 2661321), (201, 887107), (871, 204717), (2613, 68239)]