20813841

素因数分解:

$3^4\times {\mathrm{293}}^1\times {\mathrm{877}}^1$

素因数の和:1182

約数の個数: 20

約数和(自身を含む): 31233972

約数和(自身を除く): 10420131

約数列:

[1, 3, 9, 27, 81, 293, 877, 879, 2631, 2637, 7893, 7911, 23679, 23733, 71037, 256961, 770883, 2312649, 6937947, 20813841]

約数ペア:

[(1, 20813841), (3, 6937947), (9, 2312649), (27, 770883), (81, 256961), (293, 71037), (877, 23733), (879, 23679), (2631, 7911), (2637, 7893)]