20964555

素因数分解:

$3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1871}}^1$

素因数の和:1968

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16774965

約数列:

[1, 3, 5, 9, 15, 27, 45, 83, 135, 249, 415, 747, 1245, 1871, 2241, 3735, 5613, 9355, 11205, 16839, 28065, 50517, 84195, 155293, 252585, 465879, 776465, 1397637, 2329395, 4192911, 6988185, 20964555]

約数ペア:

[(1, 20964555), (3, 6988185), (5, 4192911), (9, 2329395), (15, 1397637), (27, 776465), (45, 465879), (83, 252585), (135, 155293), (249, 84195), (415, 50517), (747, 28065), (1245, 16839), (1871, 11205), (2241, 9355), (3735, 5613)]