20849913

素因数分解:

$3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1031}}^1$

素因数の和:1154

約数の個数: 32

約数和(自身を含む): 35665920

約数和(自身を除く): 14816007

約数列:

[1, 3, 7, 9, 21, 27, 63, 107, 189, 321, 749, 963, 1031, 2247, 2889, 3093, 6741, 7217, 9279, 20223, 21651, 27837, 64953, 110317, 194859, 330951, 772219, 992853, 2316657, 2978559, 6949971, 20849913]

約数ペア:

[(1, 20849913), (3, 6949971), (7, 2978559), (9, 2316657), (21, 992853), (27, 772219), (63, 330951), (107, 194859), (189, 110317), (321, 64953), (749, 27837), (963, 21651), (1031, 20223), (2247, 9279), (2889, 7217), (3093, 6741)]