6661221

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8573}}^1$

素因数の和:8620

約数の個数: 16

約数和(自身を含む): 10425984

約数和(自身を除く): 3764763

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 8573, 25719, 60011, 180033, 317201, 951603, 2220407, 6661221]

約数ペア:

[(1, 6661221), (3, 2220407), (7, 951603), (21, 317201), (37, 180033), (111, 60011), (259, 25719), (777, 8573)]