209719990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1233647}}^1$

素因数の和:1233671

約数の個数: 16

約数和(自身を含む): 399701952

約数和(自身を除く): 189981962

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 1233647, 2467294, 6168235, 12336470, 20971999, 41943998, 104859995, 209719990]

約数ペア:

[(1, 209719990), (2, 104859995), (5, 41943998), (10, 20971999), (17, 12336470), (34, 6168235), (85, 2467294), (170, 1233647)]