81481383

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{7237}}^1$

素因数の和:7388

約数の個数: 20

約数和(自身を含む): 122611720

約数和(自身を除く): 41130337

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 3753, 7237, 11259, 21711, 65133, 195399, 586197, 1005943, 3017829, 9053487, 27160461, 81481383]

約数ペア:

[(1, 81481383), (3, 27160461), (9, 9053487), (27, 3017829), (81, 1005943), (139, 586197), (417, 195399), (1251, 65133), (3753, 21711), (7237, 11259)]