12820113

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{971}}^1$

素因数の和:1146

約数の個数: 20

約数和(自身を含む): 19288368

約数和(自身を除く): 6468255

約数列:

[1, 3, 9, 27, 81, 163, 489, 971, 1467, 2913, 4401, 8739, 13203, 26217, 78651, 158273, 474819, 1424457, 4273371, 12820113]

約数ペア:

[(1, 12820113), (3, 4273371), (9, 1424457), (27, 474819), (81, 158273), (163, 78651), (489, 26217), (971, 13203), (1467, 8739), (2913, 4401)]