81231945

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{125941}}^1$

素因数の和:125992

約数の個数: 16

約数和(自身を含む): 132994752

約数和(自身を除く): 51762807

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 125941, 377823, 629705, 1889115, 5415463, 16246389, 27077315, 81231945]

約数ペア:

[(1, 81231945), (3, 27077315), (5, 16246389), (15, 5415463), (43, 1889115), (129, 629705), (215, 377823), (645, 125941)]