20840113

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2399}}^1$

素因数の和:2496

約数の個数: 16

約数和(自身を含む): 25574400

約数和(自身を除く): 4734287

約数列:

[1, 7, 17, 73, 119, 511, 1241, 2399, 8687, 16793, 40783, 175127, 285481, 1225889, 2977159, 20840113]

約数ペア:

[(1, 20840113), (7, 2977159), (17, 1225889), (73, 285481), (119, 175127), (511, 40783), (1241, 16793), (2399, 8687)]