20581605

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41579}}^1$

素因数の和:41601

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 18337275

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 41579, 124737, 207895, 374211, 457369, 623685, 1372107, 1871055, 2286845, 4116321, 6860535, 20581605]

約数ペア:

[(1, 20581605), (3, 6860535), (5, 4116321), (9, 2286845), (11, 1871055), (15, 1372107), (33, 623685), (45, 457369), (55, 374211), (99, 207895), (165, 124737), (495, 41579)]