721412

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{103}}^2$

素因数の和:227

約数の個数: 18

約数和(自身を含む): 1349838

約数和(自身を除く): 628426

約数列:

[1, 2, 4, 17, 34, 68, 103, 206, 412, 1751, 3502, 7004, 10609, 21218, 42436, 180353, 360706, 721412]

約数ペア:

[(1, 721412), (2, 360706), (4, 180353), (17, 42436), (34, 21218), (68, 10609), (103, 7004), (206, 3502), (412, 1751)]