21033945

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4211}}^1$

素因数の和:4262

約数の個数: 32

約数和(自身を含む): 38413440

約数和(自身を除く): 17379495

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4211, 4995, 12633, 21055, 37899, 63165, 113697, 155807, 189495, 467421, 568485, 779035, 1402263, 2337105, 4206789, 7011315, 21033945]

約数ペア:

[(1, 21033945), (3, 7011315), (5, 4206789), (9, 2337105), (15, 1402263), (27, 779035), (37, 568485), (45, 467421), (111, 189495), (135, 155807), (185, 113697), (333, 63165), (555, 37899), (999, 21055), (1665, 12633), (4211, 4995)]