18243895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1061}}^1$

素因数の和:1266

約数の個数: 16

約数和(自身を含む): 23194080

約数和(自身を除く): 4950185

約数列:

[1, 5, 19, 95, 181, 905, 1061, 3439, 5305, 17195, 20159, 100795, 192041, 960205, 3648779, 18243895]

約数ペア:

[(1, 18243895), (5, 3648779), (19, 960205), (95, 192041), (181, 100795), (905, 20159), (1061, 17195), (3439, 5305)]