257029479

素因数分解:

$3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{8111}}^1$

素因数の和:8627

約数の個数: 24

約数和(自身を含む): 425198592

約数和(自身を除く): 168169113

約数列:

[1, 3, 7, 9, 21, 63, 503, 1509, 3521, 4527, 8111, 10563, 24333, 31689, 56777, 72999, 170331, 510993, 4079833, 12239499, 28558831, 36718497, 85676493, 257029479]

約数ペア:

[(1, 257029479), (3, 85676493), (7, 36718497), (9, 28558831), (21, 12239499), (63, 4079833), (503, 510993), (1509, 170331), (3521, 72999), (4527, 56777), (8111, 31689), (10563, 24333)]