20123955

素因数分解:

$3^2\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1327}}^1$

素因数の和:1675

約数の個数: 24

約数和(自身を含む): 35011392

約数和(自身を除く): 14887437

約数列:

[1, 3, 5, 9, 15, 45, 337, 1011, 1327, 1685, 3033, 3981, 5055, 6635, 11943, 15165, 19905, 59715, 447199, 1341597, 2235995, 4024791, 6707985, 20123955]

約数ペア:

[(1, 20123955), (3, 6707985), (5, 4024791), (9, 2235995), (15, 1341597), (45, 447199), (337, 59715), (1011, 19905), (1327, 15165), (1685, 11943), (3033, 6635), (3981, 5055)]