81220563

素因数分解:

$3^5\times {\mathrm{83}}^1\times {\mathrm{4027}}^1$

素因数の和:4125

約数の個数: 24

約数和(自身を含む): 123160128

約数和(自身を除く): 41939565

約数列:

[1, 3, 9, 27, 81, 83, 243, 249, 747, 2241, 4027, 6723, 12081, 20169, 36243, 108729, 326187, 334241, 978561, 1002723, 3008169, 9024507, 27073521, 81220563]

約数ペア:

[(1, 81220563), (3, 27073521), (9, 9024507), (27, 3008169), (81, 1002723), (83, 978561), (243, 334241), (249, 326187), (747, 108729), (2241, 36243), (4027, 20169), (6723, 12081)]