20711528

素因数分解:

$2^3\times {\mathrm{503}}^1\times {\mathrm{5147}}^1$

素因数の和:5656

約数の個数: 16

約数和(自身を含む): 38918880

約数和(自身を除く): 18207352

約数列:

[1, 2, 4, 8, 503, 1006, 2012, 4024, 5147, 10294, 20588, 41176, 2588941, 5177882, 10355764, 20711528]

約数ペア:

[(1, 20711528), (2, 10355764), (4, 5177882), (8, 2588941), (503, 41176), (1006, 20588), (2012, 10294), (4024, 5147)]