7980147

素因数分解:

$3^3\times 7^1\times {\mathrm{42223}}^1$

素因数の和:42239

約数の個数: 16

約数和(自身を含む): 13511680

約数和(自身を除く): 5531533

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 42223, 126669, 295561, 380007, 886683, 1140021, 2660049, 7980147]

約数ペア:

[(1, 7980147), (3, 2660049), (7, 1140021), (9, 886683), (21, 380007), (27, 295561), (63, 126669), (189, 42223)]