18979016

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1493}}^1$

素因数の和:1733

約数の個数: 32

約数和(自身を含む): 40875840

約数和(自身を除く): 21896824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1493, 1589, 1816, 2986, 3178, 5972, 6356, 10451, 11944, 12712, 20902, 41804, 83608, 338911, 677822, 1355644, 2372377, 2711288, 4744754, 9489508, 18979016]

約数ペア:

[(1, 18979016), (2, 9489508), (4, 4744754), (7, 2711288), (8, 2372377), (14, 1355644), (28, 677822), (56, 338911), (227, 83608), (454, 41804), (908, 20902), (1493, 12712), (1589, 11944), (1816, 10451), (2986, 6356), (3178, 5972)]