20115869

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:460

約数の個数: 16

約数和(自身を含む): 21980160

約数和(自身を除く): 1864291

約数列:

[1, 23, 31, 89, 317, 713, 2047, 2759, 7291, 9827, 28213, 63457, 226021, 648899, 874603, 20115869]

約数ペア:

[(1, 20115869), (23, 874603), (31, 648899), (89, 226021), (317, 63457), (713, 28213), (2047, 9827), (2759, 7291)]