138439721

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{2591}}^1$

素因数の和:3064

約数の個数: 16

約数和(自身を含む): 167961600

約数和(自身を除く): 29521879

約数列:

[1, 7, 17, 119, 449, 2591, 3143, 7633, 18137, 44047, 53431, 308329, 1163359, 8143513, 19777103, 138439721]

約数ペア:

[(1, 138439721), (7, 19777103), (17, 8143513), (119, 1163359), (449, 308329), (2591, 53431), (3143, 44047), (7633, 18137)]