18977865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3917}}^1$

素因数の和:3961

約数の個数: 32

約数和(自身を含む): 33851520

約数和(自身を除く): 14873655

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 3917, 4845, 11751, 19585, 58755, 66589, 74423, 199767, 223269, 332945, 372115, 998835, 1116345, 1265191, 3795573, 6325955, 18977865]

約数ペア:

[(1, 18977865), (3, 6325955), (5, 3795573), (15, 1265191), (17, 1116345), (19, 998835), (51, 372115), (57, 332945), (85, 223269), (95, 199767), (255, 74423), (285, 66589), (323, 58755), (969, 19585), (1615, 11751), (3917, 4845)]