18290781

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{313}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 27300416

約数和(自身を除く): 9009635

約数列:

[1, 3, 9, 43, 129, 151, 313, 387, 453, 939, 1359, 2817, 6493, 13459, 19479, 40377, 47263, 58437, 121131, 141789, 425367, 2032309, 6096927, 18290781]

約数ペア:

[(1, 18290781), (3, 6096927), (9, 2032309), (43, 425367), (129, 141789), (151, 121131), (313, 58437), (387, 47263), (453, 40377), (939, 19479), (1359, 13459), (2817, 6493)]