20865141543

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{657439}}^1$

素因数の和:657662

約数の個数: 16

約数和(自身を含む): 28401408000

約数和(自身を除く): 7536266457

約数列:

[1, 3, 71, 149, 213, 447, 10579, 31737, 657439, 1972317, 46678169, 97958411, 140034507, 293875233, 6955047181, 20865141543]

約数ペア:

[(1, 20865141543), (3, 6955047181), (71, 293875233), (149, 140034507), (213, 97958411), (447, 46678169), (10579, 1972317), (31737, 657439)]