2115405

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1621}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 3795480

約数和(自身を除く): 1680075

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 1621, 4863, 8105, 14589, 24315, 47009, 72945, 141027, 235045, 423081, 705135, 2115405]

約数ペア:

[(1, 2115405), (3, 705135), (5, 423081), (9, 235045), (15, 141027), (29, 72945), (45, 47009), (87, 24315), (145, 14589), (261, 8105), (435, 4863), (1305, 1621)]