20864546

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^2$

素因数の和:290

約数の個数: 24

約数和(自身を含む): 34011120

約数和(自身を除く): 13146574

約数列:

[1, 2, 19, 38, 43, 86, 113, 226, 817, 1634, 2147, 4294, 4859, 9718, 12769, 25538, 92321, 184642, 242611, 485222, 549067, 1098134, 10432273, 20864546]

約数ペア:

[(1, 20864546), (2, 10432273), (19, 1098134), (38, 549067), (43, 485222), (86, 242611), (113, 184642), (226, 92321), (817, 25538), (1634, 12769), (2147, 9718), (4294, 4859)]