389969489

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{1061}}^1$

素因数の和:1665

約数の個数: 24

約数和(自身を含む): 489841128

約数和(自身を除く): 99871639

約数列:

[1, 7, 13, 49, 91, 577, 637, 1061, 4039, 7427, 7501, 13793, 28273, 51989, 52507, 96551, 367549, 612197, 675857, 4285379, 7958561, 29997653, 55709927, 389969489]

約数ペア:

[(1, 389969489), (7, 55709927), (13, 29997653), (49, 7958561), (91, 4285379), (577, 675857), (637, 612197), (1061, 367549), (4039, 96551), (7427, 52507), (7501, 51989), (13793, 28273)]