221805945

素因数分解:

$3^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1949}}^1$

素因数の和:2247

約数の個数: 40

約数和(自身を含む): 399227400

約数和(自身を除く): 177421455

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 281, 405, 843, 1405, 1949, 2529, 4215, 5847, 7587, 9745, 12645, 17541, 22761, 29235, 37935, 52623, 87705, 113805, 157869, 263115, 547669, 789345, 1643007, 2738345, 4929021, 8215035, 14787063, 24645105, 44361189, 73935315, 221805945]

約数ペア:

[(1, 221805945), (3, 73935315), (5, 44361189), (9, 24645105), (15, 14787063), (27, 8215035), (45, 4929021), (81, 2738345), (135, 1643007), (281, 789345), (405, 547669), (843, 263115), (1405, 157869), (1949, 113805), (2529, 87705), (4215, 52623), (5847, 37935), (7587, 29235), (9745, 22761), (12645, 17541)]