21164087

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 24864000

約数和(自身を除く): 3699913

約数列:

[1, 7, 73, 83, 499, 511, 581, 3493, 6059, 36427, 41417, 42413, 254989, 289919, 3023441, 21164087]

約数ペア:

[(1, 21164087), (7, 3023441), (73, 289919), (83, 254989), (499, 42413), (511, 41417), (581, 36427), (3493, 6059)]