13211019

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{3793}}^1$

素因数の和:3848

約数の個数: 20

約数和(自身を含む): 20199256

約数和(自身を除く): 6988237

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 3793, 11379, 34137, 102411, 163099, 307233, 489297, 1467891, 4403673, 13211019]

約数ペア:

[(1, 13211019), (3, 4403673), (9, 1467891), (27, 489297), (43, 307233), (81, 163099), (129, 102411), (387, 34137), (1161, 11379), (3483, 3793)]