20507465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{653}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 26934336

約数和(自身を除く): 6426871

約数列:

[1, 5, 11, 55, 571, 653, 2855, 3265, 6281, 7183, 31405, 35915, 372863, 1864315, 4101493, 20507465]

約数ペア:

[(1, 20507465), (5, 4101493), (11, 1864315), (55, 372863), (571, 35915), (653, 31405), (2855, 7183), (3265, 6281)]