20127813

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1\times {\mathrm{701}}^1$

素因数の和:1284

約数の個数: 16

約数和(自身を含む): 28506816

約数和(自身を除く): 8379003

約数列:

[1, 3, 17, 51, 563, 701, 1689, 2103, 9571, 11917, 28713, 35751, 394663, 1183989, 6709271, 20127813]

約数ペア:

[(1, 20127813), (3, 6709271), (17, 1183989), (51, 394663), (563, 35751), (701, 28713), (1689, 11917), (2103, 9571)]