21750029

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:692

約数の個数: 16

約数和(自身を含む): 25872000

約数和(自身を除く): 4121971

約数列:

[1, 7, 29, 203, 307, 349, 2149, 2443, 8903, 10121, 62321, 70847, 107143, 750001, 3107147, 21750029]

約数ペア:

[(1, 21750029), (7, 3107147), (29, 750001), (203, 107143), (307, 70847), (349, 62321), (2149, 10121), (2443, 8903)]