2991387

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 4589312

約数和(自身を除く): 1597925

約数列:

[1, 3, 7, 21, 181, 543, 787, 1267, 2361, 3801, 5509, 16527, 142447, 427341, 997129, 2991387]

約数ペア:

[(1, 2991387), (3, 997129), (7, 427341), (21, 142447), (181, 16527), (543, 5509), (787, 3801), (1267, 2361)]