17820945

素因数分解:

$3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1307}}^1$

素因数の和:1422

約数の個数: 32

約数和(自身を含む): 32019840

約数和(自身を除く): 14198895

約数列:

[1, 3, 5, 9, 15, 27, 45, 101, 135, 303, 505, 909, 1307, 1515, 2727, 3921, 4545, 6535, 11763, 13635, 19605, 35289, 58815, 132007, 176445, 396021, 660035, 1188063, 1980105, 3564189, 5940315, 17820945]

約数ペア:

[(1, 17820945), (3, 5940315), (5, 3564189), (9, 1980105), (15, 1188063), (27, 660035), (45, 396021), (101, 176445), (135, 132007), (303, 58815), (505, 35289), (909, 19605), (1307, 13635), (1515, 11763), (2727, 6535), (3921, 4545)]