18503739

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{449}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 28314000

約数和(自身を除く): 9810261

約数列:

[1, 3, 9, 19, 57, 171, 241, 449, 723, 1347, 2169, 4041, 4579, 8531, 13737, 25593, 41211, 76779, 108209, 324627, 973881, 2055971, 6167913, 18503739]

約数ペア:

[(1, 18503739), (3, 6167913), (9, 2055971), (19, 973881), (57, 324627), (171, 108209), (241, 76779), (449, 41211), (723, 25593), (1347, 13737), (2169, 8531), (4041, 4579)]