20838391

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{373}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 24989184

約数和(自身を除く): 4150793

約数列:

[1, 7, 23, 161, 347, 373, 2429, 2611, 7981, 8579, 55867, 60053, 129431, 906017, 2976913, 20838391]

約数ペア:

[(1, 20838391), (7, 2976913), (23, 906017), (161, 129431), (347, 60053), (373, 55867), (2429, 8579), (2611, 7981)]