20991852

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{27767}}^1$

素因数の和:27787

約数の個数: 48

約数和(自身を含む): 62200320

約数和(自身を除く): 41208468

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 27767, 55534, 83301, 111068, 166602, 194369, 249903, 333204, 388738, 499806, 583107, 749709, 777476, 999612, 1166214, 1499418, 1749321, 2332428, 2998836, 3498642, 5247963, 6997284, 10495926, 20991852]

約数ペア:

[(1, 20991852), (2, 10495926), (3, 6997284), (4, 5247963), (6, 3498642), (7, 2998836), (9, 2332428), (12, 1749321), (14, 1499418), (18, 1166214), (21, 999612), (27, 777476), (28, 749709), (36, 583107), (42, 499806), (54, 388738), (63, 333204), (84, 249903), (108, 194369), (126, 166602), (189, 111068), (252, 83301), (378, 55534), (756, 27767)]