19860645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{189149}}^1$

素因数の和:189164

約数の個数: 16

約数和(自身を含む): 36316800

約数和(自身を除く): 16456155

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 189149, 567447, 945745, 1324043, 2837235, 3972129, 6620215, 19860645]

約数ペア:

[(1, 19860645), (3, 6620215), (5, 3972129), (7, 2837235), (15, 1324043), (21, 945745), (35, 567447), (105, 189149)]