20816973

素因数分解:

$3^3\times {\mathrm{113}}^1\times {\mathrm{6823}}^1$

素因数の和:6945

約数の個数: 16

約数和(自身を含む): 31117440

約数和(自身を除く): 10300467

約数列:

[1, 3, 9, 27, 113, 339, 1017, 3051, 6823, 20469, 61407, 184221, 770999, 2312997, 6938991, 20816973]

約数ペア:

[(1, 20816973), (3, 6938991), (9, 2312997), (27, 770999), (113, 184221), (339, 61407), (1017, 20469), (3051, 6823)]