21676445

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2143}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 31593984

約数和(自身を除く): 9917539

約数列:

[1, 5, 7, 17, 35, 85, 119, 289, 595, 1445, 2023, 2143, 10115, 10715, 15001, 36431, 75005, 182155, 255017, 619327, 1275085, 3096635, 4335289, 21676445]

約数ペア:

[(1, 21676445), (5, 4335289), (7, 3096635), (17, 1275085), (35, 619327), (85, 255017), (119, 182155), (289, 75005), (595, 36431), (1445, 15001), (2023, 10715), (2143, 10115)]