248024721

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{16381}}^1$

素因数の和:16501

約数の個数: 24

約数和(自身を含む): 388449984

約数和(自身を除く): 140425263

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2163, 5047, 15141, 16381, 49143, 114667, 344001, 802669, 1687243, 2408007, 5061729, 11810701, 35432103, 82674907, 248024721]

約数ペア:

[(1, 248024721), (3, 82674907), (7, 35432103), (21, 11810701), (49, 5061729), (103, 2408007), (147, 1687243), (309, 802669), (721, 344001), (2163, 114667), (5047, 49143), (15141, 16381)]