20197191

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7573}}^1$

素因数の和:7710

約数の個数: 16

約数和(自身を含む): 31023104

約数和(自身を除く): 10825913

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7573, 22719, 53011, 159033, 961771, 2885313, 6732397, 20197191]

約数ペア:

[(1, 20197191), (3, 6732397), (7, 2885313), (21, 961771), (127, 159033), (381, 53011), (889, 22719), (2667, 7573)]