161856009

素因数分解:

$3^3\times 7^1\times {\mathrm{856381}}^1$

素因数の和:856397

約数の個数: 16

約数和(自身を含む): 274042240

約数和(自身を除く): 112186231

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 856381, 2569143, 5994667, 7707429, 17984001, 23122287, 53952003, 161856009]

約数ペア:

[(1, 161856009), (3, 53952003), (7, 23122287), (9, 17984001), (21, 7707429), (27, 5994667), (63, 2569143), (189, 856381)]