251177907

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^2\times {\mathrm{977}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 360037008

約数和(自身を除く): 108859101

約数列:

[1, 3, 17, 51, 71, 213, 977, 1207, 2931, 3621, 5041, 15123, 16609, 49827, 69367, 85697, 208101, 257091, 1179239, 3537717, 4925057, 14775171, 83725969, 251177907]

約数ペア:

[(1, 251177907), (3, 83725969), (17, 14775171), (51, 4925057), (71, 3537717), (213, 1179239), (977, 257091), (1207, 208101), (2931, 85697), (3621, 69367), (5041, 49827), (15123, 16609)]