20699685

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1433}}^1$

素因数の和:1554

約数の個数: 32

約数和(自身を含む): 37169280

約数和(自身を除く): 16469595

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 321, 535, 963, 1433, 1605, 2889, 4299, 4815, 7165, 12897, 14445, 21495, 38691, 64485, 153331, 193455, 459993, 766655, 1379979, 2299965, 4139937, 6899895, 20699685]

約数ペア:

[(1, 20699685), (3, 6899895), (5, 4139937), (9, 2299965), (15, 1379979), (27, 766655), (45, 459993), (107, 193455), (135, 153331), (321, 64485), (535, 38691), (963, 21495), (1433, 14445), (1605, 12897), (2889, 7165), (4299, 4815)]