551668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^2$

素因数の和:223

約数の個数: 18

約数和(自身を含む): 1049874

約数和(自身を除く): 498206

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 5356, 10609, 21218, 42436, 137917, 275834, 551668]

約数ペア:

[(1, 551668), (2, 275834), (4, 137917), (13, 42436), (26, 21218), (52, 10609), (103, 5356), (206, 2678), (412, 1339)]