1920780963

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{593}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 2915580096

約数和(自身を除く): 994799133

約数列:

[1, 3, 9, 37, 71, 111, 137, 213, 333, 411, 593, 639, 1233, 1779, 2627, 5069, 5337, 7881, 9727, 15207, 21941, 23643, 29181, 42103, 45621, 65823, 81241, 87543, 126309, 197469, 243723, 359899, 378927, 731169, 1079697, 1557811, 3005917, 3239091, 4673433, 5768111, 9017751, 14020299, 17304333, 27053253, 51912999, 213420107, 640260321, 1920780963]

約数ペア:

[(1, 1920780963), (3, 640260321), (9, 213420107), (37, 51912999), (71, 27053253), (111, 17304333), (137, 14020299), (213, 9017751), (333, 5768111), (411, 4673433), (593, 3239091), (639, 3005917), (1233, 1557811), (1779, 1079697), (2627, 731169), (5069, 378927), (5337, 359899), (7881, 243723), (9727, 197469), (15207, 126309), (21941, 87543), (23643, 81241), (29181, 65823), (42103, 45621)]