81864621

素因数分解:

$3^3\times {\mathrm{719}}^1\times {\mathrm{4217}}^1$

素因数の和:4945

約数の個数: 16

約数和(自身を含む): 121478400

約数和(自身を除く): 39613779

約数列:

[1, 3, 9, 27, 719, 2157, 4217, 6471, 12651, 19413, 37953, 113859, 3032023, 9096069, 27288207, 81864621]

約数ペア:

[(1, 81864621), (3, 27288207), (9, 9096069), (27, 3032023), (719, 113859), (2157, 37953), (4217, 19413), (6471, 12651)]