18891070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{863}}^1$

素因数の和:1080

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 18433730

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 863, 995, 1726, 1990, 2189, 4315, 4378, 8630, 9493, 10945, 18986, 21890, 47465, 94930, 171737, 343474, 858685, 1717370, 1889107, 3778214, 9445535, 18891070]

約数ペア:

[(1, 18891070), (2, 9445535), (5, 3778214), (10, 1889107), (11, 1717370), (22, 858685), (55, 343474), (110, 171737), (199, 94930), (398, 47465), (863, 21890), (995, 18986), (1726, 10945), (1990, 9493), (2189, 8630), (4315, 4378)]