20175471

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1409}}^1$

素因数の和:1495

約数の個数: 24

約数和(自身を含む): 30647760

約数和(自身を除く): 10472289

約数列:

[1, 3, 9, 37, 43, 111, 129, 333, 387, 1409, 1591, 4227, 4773, 12681, 14319, 52133, 60587, 156399, 181761, 469197, 545283, 2241719, 6725157, 20175471]

約数ペア:

[(1, 20175471), (3, 6725157), (9, 2241719), (37, 545283), (43, 469197), (111, 181761), (129, 156399), (333, 60587), (387, 52133), (1409, 14319), (1591, 12681), (4227, 4773)]