20810811

素因数分解:

$3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{2237}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 31797504

約数和(自身を除く): 10986693

約数列:

[1, 3, 7, 21, 443, 1329, 2237, 3101, 6711, 9303, 15659, 46977, 990991, 2972973, 6936937, 20810811]

約数ペア:

[(1, 20810811), (3, 6936937), (7, 2972973), (21, 990991), (443, 46977), (1329, 15659), (2237, 9303), (3101, 6711)]