20565069

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1523}}^1$

素因数の和:2176

約数の個数: 16

約数和(自身を含む): 31406592

約数和(自身を除く): 10841523

約数列:

[1, 3, 7, 21, 643, 1523, 1929, 4501, 4569, 10661, 13503, 31983, 979289, 2937867, 6855023, 20565069]

約数ペア:

[(1, 20565069), (3, 6855023), (7, 2937867), (21, 979289), (643, 31983), (1523, 13503), (1929, 10661), (4501, 4569)]