21051695

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{35381}}^1$

素因数の和:35410

約数の個数: 16

約数和(自身を含む): 30570048

約数和(自身を除く): 9518353

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 35381, 176905, 247667, 601477, 1238335, 3007385, 4210339, 21051695]

約数ペア:

[(1, 21051695), (5, 4210339), (7, 3007385), (17, 1238335), (35, 601477), (85, 247667), (119, 176905), (595, 35381)]