18839992

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 36741600

約数和(自身を除く): 17901608

約数列:

[1, 2, 4, 8, 41, 71, 82, 142, 164, 284, 328, 568, 809, 1618, 2911, 3236, 5822, 6472, 11644, 23288, 33169, 57439, 66338, 114878, 132676, 229756, 265352, 459512, 2354999, 4709998, 9419996, 18839992]

約数ペア:

[(1, 18839992), (2, 9419996), (4, 4709998), (8, 2354999), (41, 459512), (71, 265352), (82, 229756), (142, 132676), (164, 114878), (284, 66338), (328, 57439), (568, 33169), (809, 23288), (1618, 11644), (2911, 6472), (3236, 5822)]