20537187

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 31401216

約数和(自身を除く): 10864029

約数列:

[1, 3, 11, 33, 41, 43, 123, 129, 353, 451, 473, 1059, 1353, 1419, 1763, 3883, 5289, 11649, 14473, 15179, 19393, 43419, 45537, 58179, 159203, 166969, 477609, 500907, 622339, 1867017, 6845729, 20537187]

約数ペア:

[(1, 20537187), (3, 6845729), (11, 1867017), (33, 622339), (41, 500907), (43, 477609), (123, 166969), (129, 159203), (353, 58179), (451, 45537), (473, 43419), (1059, 19393), (1353, 15179), (1419, 14473), (1763, 11649), (3883, 5289)]