20887670

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19163}}^1$

素因数の和:19279

約数の個数: 16

約数和(自身を含む): 37944720

約数和(自身を除く): 17057050

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19163, 38326, 95815, 191630, 2088767, 4177534, 10443835, 20887670]

約数ペア:

[(1, 20887670), (2, 10443835), (5, 4177534), (10, 2088767), (109, 191630), (218, 95815), (545, 38326), (1090, 19163)]