18115227

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 30794400

約数和(自身を除く): 12679173

約数列:

[1, 3, 9, 13, 19, 29, 39, 57, 87, 117, 171, 247, 261, 281, 377, 551, 741, 843, 1131, 1653, 2223, 2529, 3393, 3653, 4959, 5339, 7163, 8149, 10959, 16017, 21489, 24447, 32877, 48051, 64467, 69407, 73341, 105937, 154831, 208221, 317811, 464493, 624663, 953433, 1393479, 2012803, 6038409, 18115227]

約数ペア:

[(1, 18115227), (3, 6038409), (9, 2012803), (13, 1393479), (19, 953433), (29, 624663), (39, 464493), (57, 317811), (87, 208221), (117, 154831), (171, 105937), (247, 73341), (261, 69407), (281, 64467), (377, 48051), (551, 32877), (741, 24447), (843, 21489), (1131, 16017), (1653, 10959), (2223, 8149), (2529, 7163), (3393, 5339), (3653, 4959)]