20484495

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1367}}^1$

素因数の和:1421

約数の個数: 40

約数和(自身を含む): 37740384

約数和(自身を除く): 17255889

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 333, 405, 555, 999, 1367, 1665, 2997, 4101, 4995, 6835, 12303, 14985, 20505, 36909, 50579, 61515, 110727, 151737, 184545, 252895, 455211, 553635, 758685, 1365633, 2276055, 4096899, 6828165, 20484495]

約数ペア:

[(1, 20484495), (3, 6828165), (5, 4096899), (9, 2276055), (15, 1365633), (27, 758685), (37, 553635), (45, 455211), (81, 252895), (111, 184545), (135, 151737), (185, 110727), (333, 61515), (405, 50579), (555, 36909), (999, 20505), (1367, 14985), (1665, 12303), (2997, 6835), (4101, 4995)]