28208733

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{18401}}^1$

素因数の和:18484

約数の個数: 16

約数和(自身を含む): 43575936

約数和(自身を除く): 15367203

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 18401, 55203, 128807, 386421, 1343273, 4029819, 9402911, 28208733]

約数ペア:

[(1, 28208733), (3, 9402911), (7, 4029819), (21, 1343273), (73, 386421), (219, 128807), (511, 55203), (1533, 18401)]