20420415

素因数分解:

$3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4241}}^1$

素因数の和:4359

約数の個数: 24

約数和(自身を含む): 35734608

約数和(自身を除く): 15314193

約数列:

[1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605, 4241, 4815, 12723, 21205, 38169, 63615, 190845, 453787, 1361361, 2268935, 4084083, 6806805, 20420415]

約数ペア:

[(1, 20420415), (3, 6806805), (5, 4084083), (9, 2268935), (15, 1361361), (45, 453787), (107, 190845), (321, 63615), (535, 38169), (963, 21205), (1605, 12723), (4241, 4815)]