20159361

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13099}}^1$

素因数の和:13130

約数の個数: 20

約数和(自身を含む): 31702000

約数和(自身を除く): 11542639

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13099, 39297, 117891, 248881, 353673, 746643, 1061019, 2239929, 6719787, 20159361]

約数ペア:

[(1, 20159361), (3, 6719787), (9, 2239929), (19, 1061019), (27, 746643), (57, 353673), (81, 248881), (171, 117891), (513, 39297), (1539, 13099)]