19984455

素因数分解:

$3^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{827}}^1$

素因数の和:1020

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 15785145

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 179, 537, 827, 895, 1611, 2481, 2685, 4135, 4833, 7443, 8055, 12405, 22329, 24165, 37215, 111645, 148033, 444099, 740165, 1332297, 2220495, 3996891, 6661485, 19984455]

約数ペア:

[(1, 19984455), (3, 6661485), (5, 3996891), (9, 2220495), (15, 1332297), (27, 740165), (45, 444099), (135, 148033), (179, 111645), (537, 37215), (827, 24165), (895, 22329), (1611, 12405), (2481, 8055), (2685, 7443), (4135, 4833)]