20286021

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23561}}^1$

素因数の和:23612

約数の個数: 16

約数和(自身を含む): 31667328

約数和(自身を除く): 11381307

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23561, 70683, 164927, 494781, 966001, 2898003, 6762007, 20286021]

約数ペア:

[(1, 20286021), (3, 6762007), (7, 2898003), (21, 966001), (41, 494781), (123, 164927), (287, 70683), (861, 23561)]