81172521

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{1019}}^1$

素因数の和:1245

約数の個数: 24

約数和(自身を含む): 120294720

約数和(自身を除く): 39122199

約数列:

[1, 3, 9, 53, 159, 167, 477, 501, 1019, 1503, 3057, 8851, 9171, 26553, 54007, 79659, 162021, 170173, 486063, 510519, 1531557, 9019169, 27057507, 81172521]

約数ペア:

[(1, 81172521), (3, 27057507), (9, 9019169), (53, 1531557), (159, 510519), (167, 486063), (477, 170173), (501, 162021), (1019, 79659), (1503, 54007), (3057, 26553), (8851, 9171)]