18207976

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 16784024

約数列:

[1, 2, 4, 8, 89, 107, 178, 214, 239, 356, 428, 478, 712, 856, 956, 1912, 9523, 19046, 21271, 25573, 38092, 42542, 51146, 76184, 85084, 102292, 170168, 204584, 2275997, 4551994, 9103988, 18207976]

約数ペア:

[(1, 18207976), (2, 9103988), (4, 4551994), (8, 2275997), (89, 204584), (107, 170168), (178, 102292), (214, 85084), (239, 76184), (356, 51146), (428, 42542), (478, 38092), (712, 25573), (856, 21271), (956, 19046), (1912, 9523)]