16988349

素因数分解:

$3^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{709}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 26548320

約数和(自身を除く): 9559971

約数列:

[1, 3, 7, 21, 49, 147, 163, 489, 709, 1141, 2127, 3423, 4963, 7987, 14889, 23961, 34741, 104223, 115567, 346701, 808969, 2426907, 5662783, 16988349]

約数ペア:

[(1, 16988349), (3, 5662783), (7, 2426907), (21, 808969), (49, 346701), (147, 115567), (163, 104223), (489, 34741), (709, 23961), (1141, 14889), (2127, 7987), (3423, 4963)]