18748473

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 8623047

約数列:

[1, 3, 23, 43, 69, 71, 89, 129, 213, 267, 989, 1633, 2047, 2967, 3053, 3827, 4899, 6141, 6319, 9159, 11481, 18957, 70219, 88021, 145337, 210657, 264063, 271717, 436011, 815151, 6249491, 18748473]

約数ペア:

[(1, 18748473), (3, 6249491), (23, 815151), (43, 436011), (69, 271717), (71, 264063), (89, 210657), (129, 145337), (213, 88021), (267, 70219), (989, 18957), (1633, 11481), (2047, 9159), (2967, 6319), (3053, 6141), (3827, 4899)]