16813881

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9203}}^1$

素因数の和:9245

約数の個数: 24

約数和(自身を含む): 28716480

約数和(自身を除く): 11902599

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 9203, 27609, 64421, 82827, 193263, 266887, 579789, 800661, 1868209, 2401983, 5604627, 16813881]

約数ペア:

[(1, 16813881), (3, 5604627), (7, 2401983), (9, 1868209), (21, 800661), (29, 579789), (63, 266887), (87, 193263), (203, 82827), (261, 64421), (609, 27609), (1827, 9203)]