20852181

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3559}}^1$

素因数の和:3606

約数の個数: 32

約数和(自身を含む): 36454400

約数和(自身を除く): 15602219

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3559, 5859, 10677, 24913, 32031, 74739, 96093, 110329, 224217, 330987, 672651, 772303, 992961, 2316909, 2978883, 6950727, 20852181]

約数ペア:

[(1, 20852181), (3, 6950727), (7, 2978883), (9, 2316909), (21, 992961), (27, 772303), (31, 672651), (63, 330987), (93, 224217), (189, 110329), (217, 96093), (279, 74739), (651, 32031), (837, 24913), (1953, 10677), (3559, 5859)]