81123615

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{9151}}^1$

素因数の和:9359

約数の個数: 24

約数和(自身を含む): 141343488

約数和(自身を除く): 60219873

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2955, 8865, 9151, 27453, 45755, 82359, 137265, 411795, 1802747, 5408241, 9013735, 16224723, 27041205, 81123615]

約数ペア:

[(1, 81123615), (3, 27041205), (5, 16224723), (9, 9013735), (15, 5408241), (45, 1802747), (197, 411795), (591, 137265), (985, 82359), (1773, 45755), (2955, 27453), (8865, 9151)]