8120847

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20353}}^1$

素因数の和:20382

約数の個数: 16

約数和(自身を含む): 13026560

約数和(自身を除く): 4905713

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 20353, 61059, 142471, 386707, 427413, 1160121, 2706949, 8120847]

約数ペア:

[(1, 8120847), (3, 2706949), (7, 1160121), (19, 427413), (21, 386707), (57, 142471), (133, 61059), (399, 20353)]