320921919

素因数分解:

$3^4\times {\mathrm{1117}}^1\times {\mathrm{3547}}^1$

素因数の和:4676

約数の個数: 20

約数和(自身を含む): 479966344

約数和(自身を除く): 159044425

約数列:

[1, 3, 9, 27, 81, 1117, 3351, 3547, 10053, 10641, 30159, 31923, 90477, 95769, 287307, 3961999, 11885997, 35657991, 106973973, 320921919]

約数ペア:

[(1, 320921919), (3, 106973973), (9, 35657991), (27, 11885997), (81, 3961999), (1117, 287307), (3351, 95769), (3547, 90477), (10053, 31923), (10641, 30159)]