18490689

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1823}}^1$

素因数の和:1866

約数の個数: 36

約数和(自身を含む): 32438016

約数和(自身を除く): 13947327

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 1823, 3381, 5469, 10143, 12761, 16407, 38283, 41929, 89327, 114849, 125787, 267981, 293503, 377361, 803943, 880509, 2054521, 2641527, 6163563, 18490689]

約数ペア:

[(1, 18490689), (3, 6163563), (7, 2641527), (9, 2054521), (21, 880509), (23, 803943), (49, 377361), (63, 293503), (69, 267981), (147, 125787), (161, 114849), (207, 89327), (441, 41929), (483, 38283), (1127, 16407), (1449, 12761), (1823, 10143), (3381, 5469)]