20257845

素因数分解:

$3^1\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1489}}^1$

素因数の和:2404

約数の個数: 16

約数和(自身を含む): 32470080

約数和(自身を除く): 12212235

約数列:

[1, 3, 5, 15, 907, 1489, 2721, 4467, 4535, 7445, 13605, 22335, 1350523, 4051569, 6752615, 20257845]

約数ペア:

[(1, 20257845), (3, 6752615), (5, 4051569), (15, 1350523), (907, 22335), (1489, 13605), (2721, 7445), (4467, 4535)]