19996767

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3413}}^1$

素因数の和:3460

約数の個数: 32

約数和(自身を含む): 34959360

約数和(自身を除く): 14962593

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3413, 5859, 10239, 23891, 30717, 71673, 92151, 105803, 215019, 317409, 645057, 740621, 952227, 2221863, 2856681, 6665589, 19996767]

約数ペア:

[(1, 19996767), (3, 6665589), (7, 2856681), (9, 2221863), (21, 952227), (27, 740621), (31, 645057), (63, 317409), (93, 215019), (189, 105803), (217, 92151), (279, 71673), (651, 30717), (837, 23891), (1953, 10239), (3413, 5859)]