18737199

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:256

約数の個数: 36

約数和(自身を含む): 29842176

約数和(自身を除く): 11104977

約数列:

[1, 3, 9, 13, 39, 97, 117, 127, 169, 291, 381, 507, 873, 1143, 1261, 1521, 1651, 3783, 4953, 11349, 12319, 14859, 16393, 21463, 36957, 49179, 64389, 110871, 147537, 160147, 193167, 480441, 1441323, 2081911, 6245733, 18737199]

約数ペア:

[(1, 18737199), (3, 6245733), (9, 2081911), (13, 1441323), (39, 480441), (97, 193167), (117, 160147), (127, 147537), (169, 110871), (291, 64389), (381, 49179), (507, 36957), (873, 21463), (1143, 16393), (1261, 14859), (1521, 12319), (1651, 11349), (3783, 4953)]