18161787

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{18401}}^1$

素因数の和:18458

約数の個数: 16

約数和(自身を含む): 28265472

約数和(自身を除く): 10103685

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 18401, 55203, 128807, 386421, 864847, 2594541, 6053929, 18161787]

約数ペア:

[(1, 18161787), (3, 6053929), (7, 2594541), (21, 864847), (47, 386421), (141, 128807), (329, 55203), (987, 18401)]