20211763

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 25724160

約数和(自身を除く): 5512397

約数列:

[1, 11, 13, 19, 43, 143, 173, 209, 247, 473, 559, 817, 1903, 2249, 2717, 3287, 6149, 7439, 8987, 10621, 24739, 36157, 42731, 81829, 96707, 116831, 141341, 470041, 1063777, 1554751, 1837433, 20211763]

約数ペア:

[(1, 20211763), (11, 1837433), (13, 1554751), (19, 1063777), (43, 470041), (143, 141341), (173, 116831), (209, 96707), (247, 81829), (473, 42731), (559, 36157), (817, 24739), (1903, 10621), (2249, 8987), (2717, 7439), (3287, 6149)]