20198559

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{643}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 27800192

約数和(自身を除く): 7601633

約数列:

[1, 3, 37, 111, 283, 643, 849, 1929, 10471, 23791, 31413, 71373, 181969, 545907, 6732853, 20198559]

約数ペア:

[(1, 20198559), (3, 6732853), (37, 545907), (111, 181969), (283, 71373), (643, 31413), (849, 23791), (1929, 10471)]