20730885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1103}}^1$

素因数の和:1297

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 17423355

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 179, 537, 895, 1103, 1253, 2685, 3309, 3759, 5515, 6265, 7721, 16545, 18795, 23163, 38605, 115815, 197437, 592311, 987185, 1382059, 2961555, 4146177, 6910295, 20730885]

約数ペア:

[(1, 20730885), (3, 6910295), (5, 4146177), (7, 2961555), (15, 1382059), (21, 987185), (35, 592311), (105, 197437), (179, 115815), (537, 38605), (895, 23163), (1103, 18795), (1253, 16545), (2685, 7721), (3309, 6265), (3759, 5515)]