20172289

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 21936640

約数和(自身を除く): 1764351

約数列:

[1, 31, 37, 43, 409, 1147, 1333, 1591, 12679, 15133, 17587, 49321, 469123, 545197, 650719, 20172289]

約数ペア:

[(1, 20172289), (31, 650719), (37, 545197), (43, 469123), (409, 49321), (1147, 17587), (1333, 15133), (1591, 12679)]