20091855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1069}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 36979200

約数和(自身を除く): 16887345

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 179, 537, 895, 1069, 1253, 2685, 3207, 3759, 5345, 6265, 7483, 16035, 18795, 22449, 37415, 112245, 191351, 574053, 956755, 1339457, 2870265, 4018371, 6697285, 20091855]

約数ペア:

[(1, 20091855), (3, 6697285), (5, 4018371), (7, 2870265), (15, 1339457), (21, 956755), (35, 574053), (105, 191351), (179, 112245), (537, 37415), (895, 22449), (1069, 18795), (1253, 16035), (2685, 7483), (3207, 6265), (3759, 5345)]