20451105

素因数分解:

$3^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{709}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 35553960

約数和(自身を除く): 15102855

約数列:

[1, 3, 5, 9, 15, 45, 641, 709, 1923, 2127, 3205, 3545, 5769, 6381, 9615, 10635, 28845, 31905, 454469, 1363407, 2272345, 4090221, 6817035, 20451105]

約数ペア:

[(1, 20451105), (3, 6817035), (5, 4090221), (9, 2272345), (15, 1363407), (45, 454469), (641, 31905), (709, 28845), (1923, 10635), (2127, 9615), (3205, 6381), (3545, 5769)]