18651394517

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{743}}^1\times {\mathrm{1091}}^1$

素因数の和:2033

約数の個数: 32

約数和(自身を含む): 22618552320

約数和(自身を除く): 3967157803

約数列:

[1, 7, 19, 133, 173, 743, 1091, 1211, 3287, 5201, 7637, 14117, 20729, 23009, 98819, 128539, 145103, 188743, 810613, 899773, 1321201, 2442241, 3586117, 5674291, 15401647, 17095687, 25102819, 107811529, 140236049, 981652343, 2664484931, 18651394517]

約数ペア:

[(1, 18651394517), (7, 2664484931), (19, 981652343), (133, 140236049), (173, 107811529), (743, 25102819), (1091, 17095687), (1211, 15401647), (3287, 5674291), (5201, 3586117), (7637, 2442241), (14117, 1321201), (20729, 899773), (23009, 810613), (98819, 188743), (128539, 145103)]