180821809

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{113}}^2$

素因数の和:274

約数の個数: 27

約数和(自身を含む): 225439617

約数和(自身を除く): 44617808

約数列:

[1, 7, 17, 49, 113, 119, 289, 791, 833, 1921, 2023, 5537, 12769, 13447, 14161, 32657, 89383, 94129, 217073, 228599, 625681, 1519511, 1600193, 3690241, 10636577, 25831687, 180821809]

約数ペア:

[(1, 180821809), (7, 25831687), (17, 10636577), (49, 3690241), (113, 1600193), (119, 1519511), (289, 625681), (791, 228599), (833, 217073), (1921, 94129), (2023, 89383), (5537, 32657), (12769, 14161)]