21888335

素因数分解:

$5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1451}}^1$

素因数の和:1894

約数の個数: 16

約数和(自身を含む): 30108672

約数和(自身を除く): 8220337

約数列:

[1, 5, 7, 35, 431, 1451, 2155, 3017, 7255, 10157, 15085, 50785, 625381, 3126905, 4377667, 21888335]

約数ペア:

[(1, 21888335), (5, 4377667), (7, 3126905), (35, 625381), (431, 50785), (1451, 15085), (2155, 10157), (3017, 7255)]