20884154

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12781}}^1$

素因数の和:12845

約数の個数: 16

約数和(自身を含む): 33744480

約数和(自身を除く): 12860326

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12781, 25562, 242839, 485678, 549583, 1099166, 10442077, 20884154]

約数ペア:

[(1, 20884154), (2, 10442077), (19, 1099166), (38, 549583), (43, 485678), (86, 242839), (817, 25562), (1634, 12781)]