257657922

素因数分解:

$2^1\times 3^4\times {\mathrm{1590481}}^1$

素因数の和:1590495

約数の個数: 20

約数和(自身を含む): 577344966

約数和(自身を除く): 319687044

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 1590481, 3180962, 4771443, 9542886, 14314329, 28628658, 42942987, 85885974, 128828961, 257657922]

約数ペア:

[(1, 257657922), (2, 128828961), (3, 85885974), (6, 42942987), (9, 28628658), (18, 14314329), (27, 9542886), (54, 4771443), (81, 3180962), (162, 1590481)]