20958063

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{5171}}^1$

素因数の和:5374

約数の個数: 16

約数和(自身を含む): 32107776

約数和(自身を除く): 11149713

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 5171, 15513, 36197, 108591, 998003, 2994009, 6986021, 20958063]

約数ペア:

[(1, 20958063), (3, 6986021), (7, 2994009), (21, 998003), (193, 108591), (579, 36197), (1351, 15513), (4053, 5171)]