19958535

素因数分解:

$3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{907}}^1$

素因数の和:1084

約数の個数: 32

約数和(自身を含む): 35738880

約数和(自身を除く): 15780345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 163, 489, 815, 907, 1467, 2445, 2721, 4401, 4535, 7335, 8163, 13605, 22005, 24489, 40815, 122445, 147841, 443523, 739205, 1330569, 2217615, 3991707, 6652845, 19958535]

約数ペア:

[(1, 19958535), (3, 6652845), (5, 3991707), (9, 2217615), (15, 1330569), (27, 739205), (45, 443523), (135, 147841), (163, 122445), (489, 40815), (815, 24489), (907, 22005), (1467, 13605), (2445, 8163), (2721, 7335), (4401, 4535)]