20490675

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9421}}^1$

素因数の和:9463

約数の個数: 24

約数和(自身を含む): 35049840

約数和(自身を除く): 14559165

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 9421, 28263, 47105, 141315, 235525, 273209, 706575, 819627, 1366045, 4098135, 6830225, 20490675]

約数ペア:

[(1, 20490675), (3, 6830225), (5, 4098135), (15, 1366045), (25, 819627), (29, 706575), (75, 273209), (87, 235525), (145, 141315), (435, 47105), (725, 28263), (2175, 9421)]