20790486

素因数分解:

$2^1\times 3^3\times {\mathrm{131}}^1\times {\mathrm{2939}}^1$

素因数の和:3081

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 25779114

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 131, 262, 393, 786, 1179, 2358, 2939, 3537, 5878, 7074, 8817, 17634, 26451, 52902, 79353, 158706, 385009, 770018, 1155027, 2310054, 3465081, 6930162, 10395243, 20790486]

約数ペア:

[(1, 20790486), (2, 10395243), (3, 6930162), (6, 3465081), (9, 2310054), (18, 1155027), (27, 770018), (54, 385009), (131, 158706), (262, 79353), (393, 52902), (786, 26451), (1179, 17634), (2358, 8817), (2939, 7074), (3537, 5878)]