18519688

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{919}}^1$

素因数の和:1165

約数の個数: 32

約数和(自身を含む): 38088000

約数和(自身を除く): 19568312

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 229, 458, 916, 919, 1832, 1838, 2519, 3676, 5038, 7352, 10076, 10109, 20152, 20218, 40436, 80872, 210451, 420902, 841804, 1683608, 2314961, 4629922, 9259844, 18519688]

約数ペア:

[(1, 18519688), (2, 9259844), (4, 4629922), (8, 2314961), (11, 1683608), (22, 841804), (44, 420902), (88, 210451), (229, 80872), (458, 40436), (916, 20218), (919, 20152), (1832, 10109), (1838, 10076), (2519, 7352), (3676, 5038)]